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Changes: The Doctor's age

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Contradictory information has pointed at different estimates of '''[[the Doctor]]'s age''', both in conversations and in terms of the length of various [[incarnation]]s.
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Contradictory information has pointed at different estimates of '''[[the Doctor]]'s [[age]]''', both in conversations and in terms of the length of various [[incarnation]]s.
   
 
== Statements and information ==
  
== Statements and information ==
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It was difficult to determine the Doctor's life expectancy, given their ability to [[regenerate]]. The [[Second Doctor]] once stated that as a [[Time Lord]], he could "live forever, barring accidents". ([[TV]]: ''[[The War Games (TV story)|The War Games]]'') A Time Lord named [[Handrel]] claimed that a single incarnation of a Time Lord could live for around [[10000 (number)|ten thousand]] [[year]]s. ([[PROSE]]: ''[[The Time Lord's Story (short story)|The Time Lord's Story]]'')
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It was difficult to determine the Doctor's life expectancy, given their ability to [[Regeneration|regenerate]]. The [[Second Doctor]] once stated that as a [[Time Lord]], he could "live forever, barring accidents". ([[TV]]: {{cs|The War Games (TV story)}}) A Time Lord named [[Handrel]] claimed that a single incarnation of a Time Lord could live for around [[10000 (number)|ten thousand]] [[year]]s. ([[PROSE]]: ''[[The Time Lord's Story (short story)|The Time Lord's Story]]'')
   
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It was also evident that Time Lords [[age]]d in a way different from [[human]]s. The [[Fourth Doctor]] once told [[Sharon Davies]] that he was a teenager for [[50 (number)|fifty]] years. ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'') He also went through spans of linear [[time]] longer than average human [[lifespan]]s without growing visibly older. ([[PROSE]]: ''[[Escape Velocity (novel)|Escape Velocity]]'', [[AUDIO]]: ''[[Orbis (audio story)|Orbis]]'', [[TV]]: ''[[The Impossible Astronaut (TV story)|The Impossible Astronaut]]'')
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It was also evident that Time Lords [[age]]d in a way different from [[human]]s. The [[Fourth Doctor]] once told [[Sharon Davies]] that he was a teenager for [[50 (number)|fifty]] years. ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'') He also went through spans of linear [[time]] longer than average human [[lifespan]]s without growing visibly older. ([[PROSE]]: ''[[Escape Velocity (novel)|Escape Velocity]]'', [[AUDIO]]: ''[[Orbis (audio story)|Orbis]]'', [[TV]]: {{cs|The Impossible Astronaut (TV story)}})
   
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[[Cindy Wu]] pointed out the uncertainty in whether the Doctor gave his age in [[Gallifreyan]] or human [[year]]s, "or some cosmic measurement tied to absolute zero universal center?" ([[COMIC]]: ''[[The Lost Dimension (comic story)|The Lost Dimension]]'')
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[[Cindy Wu]] pointed out the uncertainty in whether the Doctor gave his age in [[Gallifreyan]] or human years, "or some cosmic measurement tied to absolute zero universal center?" ([[COMIC]]: ''[[The Lost Dimension (comic story)|The Lost Dimension]]'')
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By the Doctor's [[Eleventh Doctor|eleventh incarnation]], "he had long since abandoned trying to keep track of [his age] in any way that mattered to anybody but him." ([[PROSE]]: ''[[Nothing O'Clock (short story)|Nothing O'Clock]]'')
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The [[Fifth Doctor]] once told [[Nyssa]] not to ask a Time Lord their age as they "would only lie to you". ([[AUDIO]]: ''[[The Lost Resort (audio story)|The Lost Resort]]'')
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By the time he regenerated into the [[Eleventh Doctor]], the Doctor "had long since abandoned trying to keep track of [his age] in any way that mattered to anybody but him". ([[PROSE]]: ''[[Nothing O'Clock (short story)|Nothing O'Clock]]'')
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According to one account, the Doctor was the [[Timeless Child]], a being from another [[universe]] with regenerative capabilities far beyond those of the Time Lords. This account suggested that the Time Lords' own regenerative abilities were derived from those of the Timeless Child, as a result of years of experimentation by the [[Shobogan (species)|Shobogan]] traveller [[First Tecteun|Tecteun]], who was also responsible for discovering the Timeless Child in the first place. As a result, the Doctor was even older than the Time Lords themselves, making them far older than some accounts would suggest. ([[TV]]: {{cs|The Timeless Children (TV story)}})
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=== Infinity Doctor ===
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In [[Infinity Doctor's reality|one state of reality]], [[Infinity Doctor|the Doctor]] was one of only two members of the [[High Council]] of [[Time Lord]]s, the other being [[the Magistrate]], who were less than [[2000 (number)|2000]] years old. ([[PROSE]]: ''[[The Infinity Doctors (novel)|The Infinity Doctors]]'')
   
 
=== First Doctor ===
  
=== First Doctor ===
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The [[First Doctor]] was eight when he entered the [[Time Lord Academy]], along with [[the Master]]. ([[TV]]: ''[[The Sound of Drums (TV story)|The Sound of Drums]]'') He apparently left [[primary school]] at the age of [[45 (number)|45]]. ([[PROSE]]: ''[[Shroud of Sorrow (novel)|Shroud of Sorrow]]'') The [[Tenth Doctor]] later described himself as having been "just a kid" when he first visited the [[Medusa Cascade]], at the age of [[90 (number)|90]]. ([[TV]]: ''[[The Stolen Earth (TV story)|The Stolen Earth]]'') He said he was a "[[teenager]]" for fifty years. ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'') When the [[Fourth Doctor]] was [[759 (number)|759]], ([[TV]]: ''[[The Ribos Operation (TV story)|The Ribos Operation]]'') [[Romana I|Romana]] noted the Doctor had been travelling in the TARDIS for [[523 (number)|523]] years. This would have made the Doctor about 236 when he first "borrowed" the TARDIS and left Gallifrey. ([[TV]]: ''[[The Pirate Planet (TV story)|The Pirate Planet]]'')
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The [[First Doctor]] was eight when he entered the [[Time Lord Academy]], along with [[the Master]]. ([[TV]]: {{cs|The Sound of Drums (TV story)}}) He apparently left [[primary school]] at the age of [[45 (number)|45]]. ([[PROSE]]: ''[[Shroud of Sorrow (novel)|Shroud of Sorrow]]'') The [[Tenth Doctor]] later described himself as having been "just a kid" when he first visited the [[Medusa Cascade]], at the age of [[90 (number)|90]]. ([[TV]]: {{cs|The Stolen Earth (TV story)}} The [[Fourth Doctor]] said he was a "[[teenager]]" for fifty years. ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'') The Doctor spent "[[century|centuries]]" studying at the Academy. ([[COMIC]]: ''[[Mortal Beloved (comic story)|Mortal Beloved]]'') [[Magnus (Flashback)|Magnus]] chided the Doctor for not regenerating and for holding on to this incarnation as long as he did. ([[COMIC]]: ''[[Flashback (comic story)|Flashback]]'')
   
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This figure was broadly supported by the TARDIS itself. When transferred into [[Idris|a humanoid body]], the TARDIS said the Doctor had travelled with it for [[700 (number)|700]] years. At this point, the [[Eleventh Doctor]] was around [[909 (number)|909]] years old, putting his age when he stole the TARDIS at 209. ([[TV]]: ''[[The Impossible Astronaut (TV story)|The Impossible Astronaut]]'', ''[[The Doctor's Wife (TV story)|The Doctor's Wife]]'') During the time [[Susan Foreman]] travelled with the Doctor, [[Ian Chesterton]], and [[Barbara Wright]], she knew that despite his apparent maturity, in terms of their own species the Doctor was considered an adolescent. ([[AUDIO]]: ''[[Here There Be Monsters (audio story)|Here There Be Monsters]]'') He stated he had been travelling in the TARDIS for [[60 (number)|60]] years when he visited [[64]], putting his age at 296. ([[PROSE]]: ''[[Byzantium! (novel)|Byzantium!]]'')
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When the Fourth Doctor was [[759 (number)|759]], ([[TV]]: ''[[The Ribos Operation (TV story)|The Ribos Operation]]'') [[Romana I|Romana]] noted that the Doctor had been travelling in the TARDIS for [[523 (number)|523]] years. This would have made the Doctor about [[236 (number)|236]] when he first "borrowed" the TARDIS and left Gallifrey. ([[TV]]: ''[[The Pirate Planet (TV story)|The Pirate Planet]]'') This figure was broadly supported by the TARDIS itself. When transferred into [[Idris|a humanoid body]], the TARDIS said the Doctor had travelled with it for [[700 (number)|700]] years. At this point, the [[Eleventh Doctor]] was said to be around [[909 (number)|909]] years old, putting his age when he stole the TARDIS at 209. ([[TV]]: {{cs|The Impossible Astronaut (TV story)}}, {{cs|The Doctor's Wife (TV story)}})
   
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During the time [[Susan Foreman]] travelled with the Doctor, [[Ian Chesterton]], and [[Barbara Wright]], she knew that despite his apparent maturity, in terms of their own species the Doctor was considered an adolescent. ([[AUDIO]]: ''[[Here There Be Monsters (audio story)|Here There Be Monsters]]'') While visiting the year [[64]], the Doctor stated he had been travelling in the TARDIS for [[60 (number)|60]] years. ([[PROSE]]: ''[[Byzantium! (novel)|Byzantium!]]'')
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The Doctor spent "[[century|centuries]]" studying at the Academy. ([[COMIC]]: ''[[Mortal Beloved (comic story)|Mortal Beloved]]'') [[The War Chief|Magnus]] chided the Doctor for not [[regenerating]] and for holding on to this incarnation as long as he did. ([[COMIC]]: ''[[Flashback (comic story)|Flashback]]'') To the best of his memory, the Doctor recalled having met [[Bill Cody]] just before his [[400 (number)|400]]th [[birthday]]. ([[COMIC]]: ''[[Gaze of the Medusa (comic story)|Gaze of the Medusa]]'') This incarnation [[regenerate]]d when he was [[450 (number)|450]] years old, ([[PROSE]]: ''[[Iceberg (novel)|Iceberg]]'') roughly 1,500 years before his [[Thirteenth Doctor|fourteenth regeneration]]. ([[TV]]: ''[[Twice Upon a Time (TV story)|Twice Upon a Time]]'')
  
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To the best of his memory, the Doctor recalled having met [[Bill Cody]] just before his [[400 (number)|400th]] [[birthday]]. ([[COMIC]]: ''[[Gaze of the Medusa (comic story)|Gaze of the Medusa]]'')
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During the [[Time Destructor Incident]], the Doctor told [[Steven Taylor]] that he was "already" over 700 years old, explaining that the [[Time Destructor]] would not affect him as gravely as a [[human]]. ([[PROSE]]: ''[[The Mutation of Time (novelisation)|The Mutation of Time]]'')
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According to one account, the Doctor was [[900 (number)|nine hundred]] when he went through the "strange [[psychological storm]]" that renewed him into a younger form, ([[PROSE]]: {{cs|The Phoenix in the Tardis (feature)|page=20}}) while according to another, he was was [[450 (number)|four-hundred and fifty]] years old when he regenerated, ([[PROSE]]: ''[[Iceberg (novel)|Iceberg]]'') roughly 1,500 years before his [[Thirteenth Doctor|fourteenth regeneration]]. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
   
 
=== Second Doctor ===
  
=== Second Doctor ===
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Shortly after regeneration, the [[Second Doctor]] told [[Ben Jackson]] and [[Polly Wright]] that it had been over 750 years since he left his [[Gallifrey|home planet]]. ([[PROSE]]: ''[[The Power of the Daleks (novelisation)|The Power of the Daleks]]'')
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The [[Second Doctor]] told [[Victoria Waterfield]] he was "something like" 450 years old in Earth terms. ([[TV]]: ''[[The Tomb of the Cybermen (TV story)|The Tomb of the Cybermen]]'') He was separated from his companions for a few years due to the effects of being on a planet in orbit of a pulsar. ([[AUDIO]]: ''[[Shadow of Death (audio story)|Shadow of Death]]'') He gave his age as a "tender" [[500 (number)|500]] shortly before his regeneration. ([[COMIC]]: ''[[The Brotherhood (comic story)|The Brotherhood]]'')
  
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The Doctor told [[Victoria Waterfield]] he was "something like" 450 years old in Earth terms. ([[TV]]: ''[[The Tomb of the Cybermen (TV story)|The Tomb of the Cybermen]]'') He was separated from his companions for a few years due to the effects of being on a planet in orbit of a pulsar. ([[AUDIO]]: ''[[Shadow of Death (audio story)|Shadow of Death]]'') He gave his age as a "tender" [[500 (number)|500]] shortly before his regeneration. ([[COMIC]]: ''[[The Brotherhood (comic story)|The Brotherhood]]'')
   
 
=== Third Doctor ===
  
=== Third Doctor ===
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The [[Third Doctor]] told [[Liz Shaw]] that his life covered "several thousand years". ([[TV]]: ''[[Doctor Who and the Silurians (TV story)|Doctor Who and the Silurians]]'') He started to say to Professor [[Charles Kettering|Kettering]] that he had been a scientist for "several thousand" years, but stopped himself before completing the sentence. ([[TV]]: ''[[The Mind of Evil (TV story)|The Mind of Evil]]'')
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The [[Third Doctor]] told [[Liz Shaw]] that his life covered "several thousand years". ([[TV]]: ''[[Doctor Who and the Silurians (TV story)|Doctor Who and the Silurians]]'') He started to say to Professor [[Charles Kettering|Kettering]] that he had been a scientist for "several thousand—", but stopped himself before completing the sentence. ([[TV]]: ''[[The Mind of Evil (TV story)|The Mind of Evil]]'') He also repeated the claim that he was "thousands of years old" to [[Shrink (The Shrink)|a psychiatrist]], one of several extraordinary assertions which contributed to the psychiatrist thinking that the Doctor was a mentally-ill [[human]] man. ([[TV]]: ''[[The Shrink (TV story)|The Shrink]]'') By one account, the Third Doctor's [[cheek]]s were 725 years old. ([[PROSE]]: ''[[Doctor Who and the Green Death (novelisation)|Doctor Who and the Green Death]]'')
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The Doctor told [[Sarah Jane Smith]] that he was older than 200. ([[TV]]: ''[[The Time Warrior (TV story)|The Time Warrior]]'')
   
 
=== Fourth Doctor ===
  
=== Fourth Doctor ===
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The [[Fourth Doctor]] gave his age as [[748 (number)|748]] shortly after he had first regenerated, ([[PROSE]]: ''[[A Device of Death]]'') and later on he consistently said he was "something about [[750 (number)|750]]", about [[757 (number)|757]] or [[749 (number)|749]] when he travelled with [[Sarah Jane Smith]] ([[TV]]: ''[[Pyramids of Mars (TV story)|Pyramids of Mars]]'', ''[[The Android Invasion (TV story)|The Android Invasion]]'', ''[[The Brain of Morbius (TV story)|The Brain of Morbius]]'', ''[[The Seeds of Doom (TV story)|The Seeds of Doom]]''), a further year older; 750 when travelling with [[Leela]], ([[TV]]: ''[[The Robots of Death (TV story)|The Robots of Death]]'') which was "middle-aged", ([[AUDIO]]: ''[[Destroy the Infinite (audio story)|Destroy the Infinite]]'') and [[756 (number)|756]] with [[Romana I|Romana during her first incarnation]] just before finding the first segment of the [[Key to Time]]. Romana corrected him, saying he was [[759 (number)|759]]. ([[TV]]: ''[[The Ribos Operation (TV story)|The Ribos Operation]]'') Before they assembled the Key to Time, he turned [[760 (number)|760]] ([[TV]]: ''[[The Power of Kroll (TV story)|The Power of Kroll]]'') and he was still attributed that age while fighting [[Skagra]]. ([[PROSE]]: ''[[Shada (novelisation)|Shada]]'')
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The [[Fourth Doctor]] gave his age as [[748 (number)|748]] shortly after he had first regenerated, ([[PROSE]]: ''[[A Device of Death (novel)|A Device of Death]]'') and later on he consistently said he was "something like [[750 (number)|750]]" or [[749 (number)|749]] when he travelled with [[Sarah Jane Smith]], ([[TV]]: ''[[Pyramids of Mars (TV story)|Pyramids of Mars]]'', ''[[The Android Invasion (TV story)|The Android Invasion]]'', ''[[The Brain of Morbius (TV story)|The Brain of Morbius]]'', ''[[The Seeds of Doom (TV story)|The Seeds of Doom]]'') "about" 719 years older than Sarah was. ([[PROSE]]: ''[[Sarah Jane and the Temple of Eyes (short story)|Sarah Jane and the Temple of Eyes]]'') By one account, from the Doctor's perspective, "untold years" had passed between the [[the Doctor and Susan's escape from Gallifrey|First Doctor's escape from Gallifrey]] and the Fourth Doctor's [[Genesis Incident|mission to avert]] the [[Creation of the Daleks|genesis of the Daleks]]. ([[PROSE]]: ''[[Doctor Who and the Genesis of the Daleks (novelisation)|Doctor Who and the Genesis of the Daleks]]'')
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He later claimed to be 750 when travelling with [[Leela]], ([[TV]]: ''[[The Robots of Death (TV story)|The Robots of Death]]'') which was "middle-aged", ([[AUDIO]]: ''[[Destroy the Infinite (audio story)|Destroy the Infinite]]'') and [[756 (number)|756]] with [[Romana I|Romana during her first incarnation]] just before finding the first segment of the [[Key to Time]]. Romana corrected him, saying he was [[759 (number)|759]]. ([[TV]]: ''[[The Ribos Operation (TV story)|The Ribos Operation]]'') In one letter addressed to a [[human]] audience, the Doctor claimed in short succession to be "over 750 years old (...) by your Earth years" and then simply "750 years old". ([[PROSE]]: ''[[A Letter from the Doctor (DWM 12 short story)|A Letter from the Doctor]]'')
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After arriving in [[Greece]] during the rule of [https://en.m.wikipedia.org/wiki/Philip_II_of_Macedon Phillip II], the Doctor was forced to remain in the company of [[Alexander the Great]] from when he was a student of [[Aristotle]] (between ages 13 to 16) to his death aged 32, totalling between 16-19 years. ([[PROSE]]: ''[[Doctor Who Discovers the Conquerors (novel)|Doctor Who Discovers the Conquerors]]''
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The Doctor and Romana spent 30 years travelling through the nexus point of the TARDIS. ([[PROSE]]: ''[[Heart_of_TARDIS_(novel)|Heart of TARDIS]]'') Before they assembled the Key to Time, he claimed that he was "nearly" [[760 (number)|760]]. ([[TV]]: ''[[The Power of Kroll (TV story)|The Power of Kroll]]'') He later gave that as his age to [[Henry Gordon Jago]] and [[George Litefoot]]. ([[AUDIO]]: ''[[The Justice of Jalxar (audio story)|The Justice of Jalxar]]'') He was still attributed that age while fighting [[Skagra]]. ([[PROSE]]: ''[[Shada (novelisation)|Shada]]'') However, on another adventure with [[Romana II|Romana's second incarnation]], the Doctor claimed he couldn't remember his age but believed it was [[751 (number)|751]] or [[752 (number)|752]]. ([[AUDIO]]: ''[[The Doomsday Contract (audio story)|The Doomsday Contract]]'') He also told [[Celia Soames]] that he was over 700 years old. ([[AUDIO]]: ''[[The Labyrinth of Buda Castle (audio story)|The Labyrinth of Buda Castle]]'')
   
 
When he met [[Sharon Davies]], the Doctor claimed to be [[730 (number)|730]] years old, and blamed his age for his faulty [[memory]]. ([[COMIC]]: ''[[Doctor Who and the Star Beast (comic story)|Doctor Who and the Star Beast]]'') Another time while travelling with Sharon, after ageing [[4 (number)|four]] years due to the [[chrono-compensator]], he decided he would still think himself as "[[743 (number)|743]]... or was it 730, I never can remember". ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'') He claimed at various times to be anything from [[400 (number)|400]] to a shade over [[1000 (number)|1000]] years old. ([[PROSE]]: ''[[Evolution (novel)|Evolution]]'') Romana told the Doctor that after the first few [[century|centuries]], it would be hard to remember his exact age. ([[TV]]: ''[[The Ribos Operation (TV story)|The Ribos Operation]]'')
  
When he met [[Sharon Davies]], the Doctor claimed to be [[730 (number)|730]] years old, and blamed his age for his faulty [[memory]]. ([[COMIC]]: ''[[Doctor Who and the Star Beast (comic story)|Doctor Who and the Star Beast]]'') Another time while travelling with Sharon, after ageing [[4 (number)|four]] years due to the [[chrono-compensator]], he decided he would still think himself as "[[743 (number)|743]]... or was it 730, I never can remember". ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'') He claimed at various times to be anything from [[400 (number)|400]] to a shade over [[1000 (number)|1000]] years old. ([[PROSE]]: ''[[Evolution (novel)|Evolution]]'') Romana told the Doctor that after the first few [[century|centuries]], it would be hard to remember his exact age. ([[TV]]: ''[[The Ribos Operation (TV story)|The Ribos Operation]]'')
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=== Fifth Doctor ===
  
=== Fifth Doctor ===
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The Doctor said he was [[813 (number)|813]] when he [[regenerate]]d into his [[Fifth Doctor|fifth incarnation]]. ([[PROSE]]: ''[[Cold Fusion (novel)|Cold Fusion]]'') While traveling alone with [[Nyssa]], he claimed to be "about [[800 (number)|800]]". ([[PROSE]]: ''[[Saturn (short story)|Saturn]]'') Later in his life, he stated that he was "pushing [[900 (number)|900]]." ([[AUDIO]]: ''[[Omega (audio story)|Omega]]'') He told [[Peri Brown]] that "in your years" he was "about [[850 (number)|850]]". ([[PROSE]]: ''[[The Ultimate Treasure (novel)|The Ultimate Treasure]]'') While travelling with [[Erimem]] and Peri, the Doctor claimed to be "not even [[middle-aged]] by [Time Lord] standards." ([[AUDIO]]: ''[[No Place Like Home (audio story)|No Place Like Home]]'')
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Upon the Doctor's regeneration into their [[Fifth Doctor|fifth incarnation]], he was nearly [[800 (number)|800]] years old. ([[PROSE]]: ''[[Castrovalva (novelisation)|Castrovalva]]'') By another account, he was already [[813 (number)|813]] when he [[regenerate]]d. ([[PROSE]]: ''[[Cold Fusion (novel)|Cold Fusion]]'') Whilst travelling alone with [[Nyssa]], he claimed to be "about 800", ([[PROSE]]: ''[[Saturn (short story)|Saturn]]'') and, whilst travelling with her, [[Tegan Jovanka|Tegan]] and [[Marcipor|Marc]], once told her not to ask a Time Lord their age as they would only lie. ([[AUDIO]]: ''[[The Lost Resort (audio story)|The Lost Resort]]'')
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Later in his life, he stated that he was "pushing [[900 (number)|900]]". ([[AUDIO]]: ''[[Omega (audio story)|Omega]]'') He told [[Peri Brown]] that "in [her] years" he was "about [[850 (number)|850]]". ([[PROSE]]: ''[[The Ultimate Treasure (novel)|The Ultimate Treasure]]'') While travelling with [[Erimem]] and Peri, the Doctor claimed to be "not even [[middle-aged]] by [Time Lord] standards". ([[AUDIO]]: ''[[No Place Like Home (audio story)|No Place Like Home]]'') An age-scanning device identified him as being almost 900 when he was reunited with [[Abby (The Judgement of Isskar)|Abby]] and [[Zara (The Judgement of Isskar)|Zara]], some time after being joined by Peri. ([[AUDIO]]: ''[[The Garden of Storms (audio story)|The Garden of Storms]]'')
   
 
=== Sixth Doctor ===
  
=== Sixth Doctor ===
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Some [[80 (number)|80]] years passed between the Doctor's first and second meetings with [[Becky (Teach Yourself Ballroom Dancing)|Becky]]. ([[PROSE]]: ''[[Teach Yourself Ballroom Dancing (short story)|Teach Yourself Ballroom Dancing]]'') The [[Sixth Doctor]] said he was [[900 (number)|900]] years old while travelling with [[Peri Brown|Peri]]. ([[TV]]: ''[[Revelation of the Daleks (TV story)|Revelation of the Daleks]]'', ''[[The Mysterious Planet (TV story)|The Mysterious Planet]]''), "not a day over nine hundred years old" when threatened with death by [[stoning]]. ([[PROSE]]: ''[[The Mysterious Planet (novelisation)|The Mysterious Planet]]'')
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Some [[80 (number)|80]] years passed between the Doctor's first and second meetings with [[Becky (Teach Yourself Ballroom Dancing)|Becky]]. ([[PROSE]]: ''[[Teach Yourself Ballroom Dancing (short story)|Teach Yourself Ballroom Dancing]]'') [[Peri Brown|Peri]] believed that the [[Sixth Doctor]] was [[760 (number)|760]] years old, ([[PROSE]]: ''[[The Two Doctors (novelisation)|The Two Doctors]]'') although he later told her that he was [[900 (number)|900]] ([[TV]]: ''[[Revelation of the Daleks (TV story)|Revelation of the Daleks]]'', ''[[The Mysterious Planet (TV story)|The Mysterious Planet]]'') and said that he was "not a day over nine hundred years old" when threatened with death by [[stoning]]. ([[PROSE]]: ''[[The Mysterious Planet (novelisation)|The Mysterious Planet]]'')
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The Doctor told [[Will Hoffman]] that he had not visited [[Beirut]] since attending the [[3074 World Cup]] "a thousand years" ago. ([[PROSE]]: ''[[Incongruous Details (short story)|Incongruous Details]]'')
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The Doctor spent one hundred years travelling in the TARDIS while Evelyn and [[Jacob Williams|Jacob]], [[Mary (Bedtime Story)|Mary]] and Peter Williams recovered from being frozen in time. ([[AUDIO]]: ''[[Bedtime Story (audio story)|Bedtime Story]]'')
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[[Charlotte Pollard]] believed that the Doctor was seven times older than she could ever hope to be. ([[AUDIO]]: ''[[These Stolen Hours (audio story)|These Stolen Hours]]'')
   
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While travelling with [[Flip Jackson]], he spent a century frozen in [[Vortex Ice]]. ([[AUDIO]]: ''[[Vortex Ice (audio story)|Vortex Ice]]'') Flip later called him around 900, but she was not sure on the exact age. ([[AUDIO]]: ''[[The Middle (audio story)|The Middle]]'')
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While travelling with [[Flip Jackson]], he spent a century frozen in [[Vortex Ice]]. ([[AUDIO]]: ''[[Vortex Ice (audio story)|Vortex Ice]]'') Flip later called him around 900, but she was not sure on the exact age. The Doctor later told her that he had lived for almost a millennium. ([[AUDIO]]: ''[[The Middle (audio story)|The Middle]]'')
   
 
The Doctor told his companion [[Constance Clarke]] that he was over 900 years old. ([[AUDIO]]: ''[[Absolute Power (audio story)|Absolute Power]]'')
  
The Doctor told his companion [[Constance Clarke]] that he was over 900 years old. ([[AUDIO]]: ''[[Absolute Power (audio story)|Absolute Power]]'')
   
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By the time he was travelling with [[Melanie Bush]], he had blown out the [[candle]]s on his 900th [[birthday]] cake. ([[AUDIO]]: ''[[The One Doctor (audio story)|The One Doctor]]'') The [[Malamud]] noted that, because of the many volumes about the Doctor's life, he must be [[20000 (number)|20,000]] years old. The Doctor didn't contradict them. ([[PROSE]]: ''[[The Book of My Life (short story)|The Book of My Life]]'') At another time, he was [[991 (number)|991]] during his travels with Melanie Bush. ([[PROSE]]: ''[[A Wee Deoch an ...? (short story)|A Wee Deoch an ...?]]'') He was [[953 (number)|953]] years old when he regenerated. ([[TV]]: ''[[Time and the Rani (TV story)|Time and the Rani]]'')
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By the time he was travelling with [[Melanie Bush]], he had blown out the [[candle]]s on his 900th [[birthday]] cake and was approaching [[930 (number)|930]]. ([[AUDIO]]: ''[[The One Doctor (audio story)|The One Doctor]]'') Soon after, Mel noted that the Doctor was approximately 900 years old. ([[AUDIO]]: ''[[The Juggernauts (audio story)|The Juggernauts]]'')
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The [[Malamud]] noted that, because of the many volumes about the Doctor's life, he must be [[20000 (number)|20,000]] years old. The Doctor didn't contradict them. ([[PROSE]]: ''[[The Book of My Life (short story)|The Book of My Life]]'') At another time, he was [[991 (number)|991]] during his travels with Mel ([[PROSE]]: ''[[A Wee Deoch an ...? (short story)|A Wee Deoch an ...?]]'') and, whilst travelling with Mel and Hebe, said that he was almost a thousand. ([[AUDIO]]: ''[[The Tides of the Moon (audio story)|The Tides of the Moon]]'') He was [[953 (number)|953]] years old when he regenerated. ([[TV]]: ''[[Time and the Rani (TV story)|Time and the Rani]]'')
   
 
=== Seventh Doctor ===
  
=== Seventh Doctor ===
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Hours after his [[regeneration]], the [[Seventh Doctor]] unlocked a door in {{O'Mara}}'s laboratory with the numerical code "[[953 (number)|953]]", saying it was both his age and the Rani's. ([[TV]]: ''[[Time and the Rani (TV story)|Time and the Rani]]'') The Doctor had his [[1000 (number)|1,000]]th [[birthday]] while travelling with [[Ace]] and [[Bernice Summerfield]]. ([[PROSE]]: ''[[Set Piece (novel)|Set Piece]]'') While in [[Japan]], the Doctor reckoned he was at least [[1003 (number)|1003]]. ([[PROSE]]: ''[[The Room With No Doors (novel)|The Room with No Doors]]'')
 +
Hours after his [[regeneration]], the [[Seventh Doctor]] unlocked a door in {{O'Mara}}'s laboratory with the numerical code "[[953 (number)|953]]", saying it was both his age and the Rani's. ([[TV]]: ''[[Time and the Rani (TV story)|Time and the Rani]]'') Whilst rewiring the Dalek transmat in the cellar of Coal Hill, he said to [[Allison Williams]] that he had "900 years experience." ([[TV]]: ''[[Remembrance of the Daleks (TV story)|Remembrance of the Daleks]]'') On [[Heaven (Love and War)|Heaven]], [[Ace]] described him in her mind as [[783 (number)|783]]. ([[PROSE]]: ''[[Love and War (novel)|Love and War]]'') While travelling with her and [[Bernice Summerfield]], the Doctor claimed to be [[943 (number)|943]]. ([[PROSE]]: ''[[Lucifer Rising (novel)|Lucifer Rising]]'') The Doctor later had his [[1000 (number)|1,000th]] [[birthday]] while in their company. ([[PROSE]]: ''[[Set Piece (novel)|Set Piece]]'') When he found Bernice in the TARDIS boot cupboard he stated he'd lived for 'over a millennium'. ([[PROSE]]: ''[[Original Sin (novel)|Original Sin]]'') While in [[Japan]], the Doctor reckoned he was at least [[1003 (number)|1003]]. ([[PROSE]]: ''[[The Room With No Doors (novel)|The Room with No Doors]]'')
  +
  +
While travelling with Ace and [[Hex]], the Doctor noted that he had lived 900 years. ([[AUDIO]]: ''[[Mask of Tragedy (audio story)|Mask of Tragedy]]'')
   
 
On arriving in [[the Forge]], the Seventh Doctor claimed that "a [[century]] or three" had passed in his personal timeline since his previous incarnation visited it. ([[AUDIO]]: ''[[Project Lazarus (audio story)|Project: Lazarus]]'')
  
On arriving in [[the Forge]], the Seventh Doctor claimed that "a [[century]] or three" had passed in his personal timeline since his previous incarnation visited it. ([[AUDIO]]: ''[[Project Lazarus (audio story)|Project: Lazarus]]'')
   
−
By his own estimate afterward he would have been 1009 when he regenerated, though he admitted he may have lost count at some point. ([[PROSE]]: ''[[Vampire Science (novel)|Vampire Science]]'')
 +
He believed that he was nearly a thousand years old before he regenerated. ([[PROSE]]: ''[[The Novel of the Film (novelisation)|The Novel of the Film]]'') By his own estimate afterward he would have been 1009 when he regenerated, though he admitted he may have lost count at some point. ([[PROSE]]: ''[[Vampire Science (novel)|Vampire Science]]'')
   
 
=== Eighth Doctor ===
  
=== Eighth Doctor ===
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While battling the Ice Warriors, the Doctor reckoned he was [[1200 (number)|1200]] years old. ([[PROSE]]: ''[[The Dying Days (novel)|The Dying Days]]'') While travelling with [[Charley Pollard]], he said he was "nine hundred and fifty something years old". ([[AUDIO]]: ''[[Neverland (audio story)|Neverland]]'') Not long after, while travelling in the [[Divergent Universe]], he was noted to have had "over a thousand years worth of collected experience" by a [[cave creature]] in the form of [[Koth (The Twilight Kingdom)|Major Koth]]. ([[AUDIO]]: ''[[The Twilight Kingdom (audio story)|The Twilight Kingdom]]'') While travelling with [[Lucie Miller]], the Doctor spent [[600 (number)|600]] years on the planet [[Orbis]]. He later mentioned that he rounded and adjusted his age based on different year lengths in different parts of the universe, claiming that in one obscure galaxy he would be two years old. ([[AUDIO]]: ''[[Orbis (audio story)|Orbis]]'') The Doctor also spent several months travelling with Nyssa on board ''[[The Traken]]'' during the [[Last Great Time War]]. ([[AUDIO]]: ''[[A Heart on Both Sides (audio story)|A Heart on Both Sides]]'')
  
While battling the Ice Warriors, the Doctor reckoned he was [[1200 (number)|1200]] years old. ([[PROSE]]: ''[[The Dying Days (novel)|The Dying Days]]'') While travelling with [[Charley Pollard]], he said he was "nine hundred and fifty something years old". ([[AUDIO]]: ''[[Neverland (audio story)|Neverland]]'') Not long after, while travelling in the [[Divergent Universe]], he was noted to have had "over a thousand years worth of collected experience" by a [[cave creature]] in the form of [[Koth (The Twilight Kingdom)|Major Koth]]. ([[AUDIO]]: ''[[The Twilight Kingdom (audio story)|The Twilight Kingdom]]'') While travelling with [[Lucie Miller]], the Doctor spent [[600 (number)|600]] years on the planet [[Orbis]]. He later mentioned that he rounded and adjusted his age based on different year lengths in different parts of the universe, claiming that in one obscure galaxy he would be two years old. ([[AUDIO]]: ''[[Orbis (audio story)|Orbis]]'') The Doctor also spent several months travelling with Nyssa on board ''[[The Traken]]'' during the [[Last Great Time War]]. ([[AUDIO]]: ''[[A Heart on Both Sides (audio story)|A Heart on Both Sides]]'')
  +
=== The Doctor's ninth incarnation===
  +
There existed some conflict as to the true identity of [[the Doctor's ninth incarnation]], with the [[Eighth Doctor]] being aware of several potential future selves. ([[PROSE]]: ''[[The Tomorrow Windows (novel)|The Tomorrow Windows]]'', ''[[The Gallifrey Chronicles (novel)|The Gallifrey Chronicles]]'')
   
−
=== War Doctor ===
 +
==== "Listless-looking" Ninth Doctor ====
  +
During his travels with [[Emma (The Curse of Fatal Death)|Emma]] at a point where he hadn't been to [[Earth]] in several [[years]], a [[Ninth Doctor (The Curse of Fatal Death)|Ninth Doctor]] described himself as "over 800 years old". ([[PROSE]]: {{cs|Who's After Your Cash (short story)}})
⚫
The Last Great Time War, in which the [[War Doctor]] fought, lasted no less than [[400 (number)|400]] years of linear time, although at the time of his experiences in the [[Tantalus Spiral]], which led him to decide the war could go on "no more", this incarnation's age was a hundred years or more. ([[PROSE]]: ''[[Engines of War (novel)|Engines of War]]'')
  
   
  +
==== War Doctor ====
⚫
<!-- Although pp. 11-12 of Engines of War says that "in simple, linear terms, the war had been going on for over four hundred years", p. 20 first describes the Doctor by saying that the luminescence from the roundrels was "causing the craggy lines of his face to be picked out in shadow: the map of a hundred years or more, worn thin through conflict and weariness." -->Shortly before the end of his life, the War Doctor said he was 400 years younger than the [[Eleventh Doctor]] when he gave his age as "twelve hundred or something", making him somewhere between 800 and 900 years old. ([[TV]]: ''[[The Day of the Doctor (TV story)|The Day of the Doctor]]'')
  
  ⚫
The [[Last Great Time War]], in which the [[War Doctor]] fought, lasted no less than [[400 (number)|400]] years of linear time, but the various temporal aspects to the War meant that, in effect, the fighting had been going on for eternity. At the time of [[Battle for the Tantalus Eye|his experiences]] in the [[Tantalus Spiral]], which led him to decide the war could go on "no more", this incarnation's age was a hundred years or more. ([[PROSE]]: ''[[Engines of War (novel)|Engines of War]]'')
   
  ⚫
<!-- Although pp. 11-12 of Engines of War says that "in simple, linear terms, the war had been going on for over four hundred years", p. 20 first describes the Doctor by saying that the luminescence from the roundrels was "causing the craggy lines of his face to be picked out in shadow: the map of a hundred years or more, worn thin through conflict and weariness." -->Shortly before the end of his life, the War Doctor said he was 400 years younger than the [[Eleventh Doctor]] when he gave his age as "twelve hundred or something", making him somewhere between 800 and 900 years old. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
⚫
=== Ninth Doctor ===
  
⚫
The [[Ninth Doctor]] spent weeks having adventures between first encountering Rose in Henrik's, and turning up at the meal where he encountered Auton Mickey. ([[PROSE]]: ''[[Rose (novelisation)|Rose]]'')
  
   
  +
==== "Big-eared" Ninth Doctor ====
⚫
The Ninth Doctor claimed "[[900 (number)|900]] years of time and space". Immediately after he made this comment, he told [[Rose Tyler]] it was "[his] age." ([[TV]]: ''[[Aliens of London (TV story)|Aliens of London]]'')
  
  ⚫
The [[Ninth Doctor]] with big ears ([[TV]]: {{cs|Rose (TV story)}}) and a hawklike face ([[PROSE]]: ''[[The Tomorrow Windows (novel)|The Tomorrow Windows]]'') spent "weeks" having adventures between first encountering [[Rose Tyler]] in [[Henrik's]], and turning up at the meal where he encountered [[Auton]] [[Mickey Smith|Mickey]]. ([[PROSE]]: {{cs|Rose (novelisation)}})
   
  +
The Doctor decided against revealing his age to [[Assistant (Have You Seen This Man?)|an assistant]] at [[B&Q]] in [[March]] [[2005]], despite meaning he wouldn't get the over-[[65 (number)|65]]s [[10 (number)|10]][[%]] [[discount]]. Between meeting the Doctor in [[1977]] and seeing photos of him in [[2005]], [[JR]]'s [[JR's mother|mum]] mused that the Doctor "hadn't aged a day". [[Readers of whoisdoctorwho.co.uk|Some individuals]] who knew of the Doctor being in certain time periods prior to the [[21st century]], gave estimates towards the Doctor's age: [[Marcus Butler]], knowing that the [[Ninth Doctor]] joined in with [[Marcus Butler's father|his dad]]'s [[skiffle band]] in the [[1960s]], reasoned that the Doctor must be in his [[70 (number)|seventies]]. ([[PROSE]]: ''[[Have You Seen This Man? (short story)|Have You Seen This Man?]]'')
⚫
He spent [[28 (number)|28]] years waiting on Earth to meet up with Rose in [[1922]], ([[AUDIO]]: ''[[The Other Side (audio story)|The Other Side]]'') and looked visibly older to Rose after he returned from his journey to the [[Causubus]] ship. ([[PROSE]]: ''[[Rose and the Snow Window (short story)|Rose and the Snow Window]]'') He later considered himself to have had "900 years of phone box travel". ([[TV]]: ''[[The Empty Child (TV story)|The Empty Child]]'')
  
  +
  ⚫
After Rose asked what he meant when he said "[[900 (number)|900]] years of time and space", the Doctor told her it was "[his] age". ([[TV]]: {{cs|Aliens of London (TV story)}})
  +
  ⚫
He spent [[28 (number)|28]] years waiting on Earth to meet up with Rose in [[1922]], ([[AUDIO]]: ''[[The Other Side (audio story)|The Other Side]]'') and looked visibly older to Rose after he returned from his journey to the [[Causubus]] ship. ([[PROSE]]: ''[[Rose and the Snow Window (short story)|Rose and the Snow Window]]'') He later considered himself to have had "900 years of phone box travel". ([[TV]]: {{cs|The Empty Child (TV story)}})
   
 
=== Tenth Doctor ===
  
=== Tenth Doctor ===
−
The [[Tenth Doctor]] was [[900 (number)|900]] while traveling with [[Rose Tyler]]. ([[PROSE]]: ''[[The Hero Factor (short story)|The Hero Factor]]'')
 +
The [[Tenth Doctor]] was [[900 (number)|900]] while travelling with [[Rose Tyler]]. ([[PROSE]]: ''[[The Hero Factor (short story)|The Hero Factor]]'') During one of their adventures, he spent several months on Earth learning how to sculpt. ([[PROSE]]: ''[[The Stone Rose (novel)|The Stone Rose]]'')
   
−
The Tenth Doctor said he was [[903 (number)|903]] years old while attempting to rescue the ''[[Titanic (spaceship)|Titanic]]''. ([[TV]]: ''[[Voyage of the Damned (TV story)|Voyage of the Damned]]'') Prior to the ''Titanic'' incident, he claimed to have spent at least [[33 (number)|33]] months searching for [[Martha Jones]] in deep space ([[TV]]: ''[[The Infinite Quest (TV story)|The Infinite Quest]]''), and several months living in various time periods on Earth ([[PROSE]]: ''[[The Stone Rose (novel)|The Stone Rose]]'', [[TV]]: ''[[Human Nature (TV story)|Human Nature]]'' / ''[[The Family of Blood (TV story)|The Family of Blood]]'', ''[[Blink (TV story)|Blink]]'') and inside the ''[[Valiant (aircraft carrier)|Valiant]]'' during the so-called [[Year That Never Was]]. ([[TV]]: ''[[Last of the Time Lords (TV story)|Last of the Time Lords]]'')
 +
When the Doctor was imprisoned on [[Volag-Noc]], his brain was scanned for criminal activity, revealing that some of his memories dated back over [[3000 (number)|3000]] years. Around the time of this incident, the Doctor claimed to have spent at least [[33 (number)|33]] months searching for [[Martha Jones]] in deep space. ([[TV]]: ''[[The Infinite Quest (TV story)|The Infinite Quest]]'') During his travels with Martha, the Doctor spent several months living in various time periods on Earth ([[TV]]: {{cs|Human Nature (TV story)}} / {{cs|The Family of Blood (TV story)}}, ''[[Blink (TV story)|Blink]]'') and inside the ''[[Valiant (aircraft carrier)|Valiant]]'' during the so-called [[Year That Never Was]]. ([[TV]]: {{cs|Last of the Time Lords (TV story)}})
   
−
While traveling alone, he claimed to be [[904 (number)|904]] years old. ([[PROSE]]: ''[[Number 1, Gallows Gate Road (short story)|Number 1, Gallows Gate Road]]'')
 +
He said he was [[903 (number)|903]] years old while attempting to save the ''[[Titanic (spaceship)|Titanic]]''. ([[TV]]: {{cs|Voyage of the Damned (TV story)}})
   
  +
While travelling alone, he claimed to be [[904 (number)|904]] years old. ([[PROSE]]: ''[[Number 1, Gallows Gate Road (short story)|Number 1, Gallows Gate Road]]'')
−
He again claimed 903 during an adventure with [[Donna Noble]]. ([[AUDIO]]: ''[[The Nemonite Invasion (audio story)|The Nemonite Invasion]]'') In a later adventure in [[Nevada]], he said 900 again, suggesting he was approximating. ([[TV]]: ''[[Dreamland (TV story)|Dreamland]]'') While confronting a [[rabbit]] in [[Elizabethan]] [[England]] he briefly believed to be a [[Zygon]] in disguise, he said he was 904 years old. ([[TV]]: ''[[The Day of the Doctor (TV story)|The Day of the Doctor]]'') Just prior to regenerating, he gave his age as [[906 (number)|906]], suggesting that several years had passed for the Doctor after his travels with Donna Noble. ([[TV]]: ''[[The End of Time (TV story)|The End of Time]]'')
  
   
−
However, during an adventure with [[Donna Noble]] on the planet [[Calibris]], the Doctor shot himself with several [[Time Reaver gun|time reaver guns]]. While ten minutes passed for those around him, he spent [[7 (number)|7]] centuries frozen in time. ([[AUDIO]]: ''[[Time Reaver (audio story)|Time Reaver]]'')
 +
He again claimed to be 903 during an adventure with [[Donna Noble]]. ([[AUDIO]]: ''[[The Nemonite Invasion (audio story)|The Nemonite Invasion]]'') During another adventure with Donna, on the planet [[Calibris]], the Doctor shot himself with several [[Time Reaver gun|time reaver guns]]. While ten minutes passed for those around him, he experienced [[7 (number)|7]] [[century|centuries]] frozen in time. ([[AUDIO]]: ''[[Time Reaver (audio story)|Time Reaver]]'')
   
−
Also, when the Doctor was imprisoned on Volag-Noc, his brain was scanned for criminal activity, revealing that some of his memories dated back over [[3000 (number)|3000]] years. ([[TV]]: ''[[The Infinite Quest (TV story)|The Infinite Quest]]'')
 +
After meeting [[Gabby Gonzalez]], the Doctor stated that he was over 900 years old. ([[COMIC]]: ''[[The Arts in Space (comic story)|The Arts in Space]]'') In a later adventure in [[Nevada]], he said 900 again, suggesting he was approximating. ([[TV]]: ''[[Dreamland (TV story)|Dreamland]]'')
  +
  +
In an encounter with the [[Fourth Doctor]] while travelling alone, the Tenth Doctor told his past self he was "barely half a [[millennium]]" older. ([[AUDIO]]: ''[[Out of Time (audio story)|Out of Time]]'')
  +
  +
While confronting a [[rabbit]] he briefly believed to be a [[Zygon]] in disguise in [[Elizabethan]] [[England]], the Doctor said he was 904 ([[TV]]: {{cs|The Day of the Doctor (TV story)}}) or 900 years old. ([[PROSE]]: {{cs|The Day of the Doctor (novelisation)}}) Just prior to regenerating, he gave his age as [[906 (number)|906]]. ([[TV]]: ''[[The End of Time (TV story)|The End of Time]]'')
   
 
=== Eleventh Doctor ===
  
=== Eleventh Doctor ===
−
Not long after [[Amy Pond]] first encountered the [[Eleventh Doctor]], he told her that he was [[907 (number)|907]]. ([[TV]]: ''[[Flesh and Stone (TV story)|Flesh and Stone]]'') During his travels with [[Alice Obiefune]], the Doctor claimed to have lived "[[900 (number)|900]]-odd-years." ([[COMIC]]: ''[[Pull to Open (comic story)|Pull to Open]]'')
 +
Not long after [[Amy Pond]] first encountered the [[Eleventh Doctor]], he told her that he was [[907 (number)|907]]. ([[TV]]: {{cs|Flesh and Stone (TV story)}}) Later in their travels, he claimed to be [[908 (number)|908]]. ([[COMIC]]: ''[[The Cleverest King (comic story)|The Cleverest King]]'') Indeed, at [[Lake Silencio]] in [[Utah]], Amy would recall that the Doctor was 908 the last time she saw him. ([[TV]]: {{cs|The Impossible Astronaut (TV story)}})
   
  +
During his travels with [[Alice Obiefune]], the Doctor claimed to have lived "[[900 (number)|900]]-odd-years". ([[COMIC]]: ''[[Pull to Open (comic story)|Pull to Open]]'')
−
When his future self invited him to [[Utah]], the younger Doctor gave his age as [[909 (number)|909]]. ([[TV]]: ''[[The Impossible Astronaut (TV story)|The Impossible Astronaut]]'') The Doctor later commented that he was around [[George (Night Terrors)|George's]] age of [[8 (number)|8]] "about a [[1000 (number)|thousand years]] ago". ([[TV]]: ''[[Night Terrors (TV story)|Night Terrors]]'')
  
   
−
When he met Amy, Rory, [[River Song|River]] and [[Canton Everett Delaware III|Canton]] at [[Lake Silencio]], his older self told Amy that he was [[1103 (number)|1103]]. ([[TV]]: ''[[The Impossible Astronaut (TV story)|The Impossible Astronaut]]'') Indeed, the Doctor at this point in his life had just finished his [[farewell tour]], which appeared to have lasted about 200 years. ([[TV]]: ''[[The Wedding of River Song (TV story)|The Wedding of River Song]]'')
 +
When his future self invited him to Lake Silencio, the younger Doctor gave his age as [[909 (number)|909]]. ([[TV]]: {{cs|The Impossible Astronaut (TV story)}}) The Doctor later commented that he was around [[George Thompson|George]]'s age of [[8 (number)|eight]] "about a [[1000 (number)|thousand]] [[year]]s ago". ([[TV]]: {{cs|Night Terrors (TV story)}})
   
−
By the time he had left Amy and Rory, but still offered them brief trips in the TARDIS, he stated his age as [[1200 (number)|1200]]. ([[TV]]: ''[[A Town Called Mercy (TV story)|A Town Called Mercy]]'') When asked if he knew any tricks, the Doctor stated that he'd been escaping for "about a thousand years, give or take a [[century]] or so." ([[PROSE]]: ''[[Magic of the Angels (novel)|Magic of the Angels]]'')
 +
When he met Amy, Rory, [[River Song|River]] and [[Canton Everett Delaware III|Canton]] at Lake Silencio, his older self told Amy that he was [[1103 (number)|1103]]. ([[TV]]: {{cs|The Impossible Astronaut (TV story)}}) Indeed, the Doctor at this point in his life had just finished his [[farewell tour]], which appeared to have lasted about 200 years. ([[TV]]: {{cs|The Wedding of River Song (TV story)}})
   
−
When he met [[Clara Oswald]], he rounded his age down to 1000. ([[TV]]: ''[[The Bells of Saint John (TV story)|The Bells of Saint John]]'') The Doctor later spent [[3 (number)|three]] years trapped in a vast room within the TARDIS. ([[COMIC]]: ''[[Sky Jacks (comic story)|Sky Jacks]]'') When asked by the [[War Doctor]], he said he didn't know and had lost track, settling on "1200-and-something". He went on to say that he was so old he couldn't remember if he was lying about his age. ([[TV]]: ''[[The Day of the Doctor (TV story)|The Day of the Doctor]]'')
 +
By the time he had left Amy and Rory, but still offered them brief trips in the TARDIS, he stated his age as [[1200 (number)|1200]]. ([[TV]]: {{cs|A Town Called Mercy (TV story)}}) When asked if he knew any tricks, the Doctor stated that he'd been escaping for "about a thousand years, give or take a [[century]] or so". ([[PROSE]]: ''[[Magic of the Angels (novel)|Magic of the Angels]]'')
   
  +
Whilst travelling with [[Valarie Lockwood]], the Doctor said that he had lived his life for "thousands and thousands" of years. ([[AUDIO]]: ''[[The End (11DC audio story)|The End]]'')
⚫
During the [[Siege of Trenzalore]], the Doctor told [[Theol]] that he was "nearly" [[1500 (number)|1500]], but he could be a few hundred years off either way. ([[PROSE]]: ''[[An Apple a Day... (short story)|An Apple a Day...]]'') By the time Clara saw him next, he had spent [[300 (number)|300]] years defending the world of [[Trenzalore]], making him at least 1500 years old.. ([[TV]]: ''[[The Time of the Doctor (TV story)|The Time of the Doctor]]'') By the time the [[Mara]] began attacking the residents of Trenzalore, the Doctor had been there for [[750 (number)|750]] years, making him 1950. ([[PROSE]]: ''[[The Dreaming (short story)|The Dreaming]]'') In total, the Doctor spent 900 years on Trenzalore, making him roughly 2100 years old at the end of his first complete cycle of regenerations. ([[PROSE]]: ''[[Tales of Trenzalore: The Eleventh Doctor's Last Stand]]'')
  
  +
  +
When he met [[Clara Oswald]], he rounded his age down to 1000. ([[TV]]: {{cs|The Bells of Saint John (TV story)}}, {{cs|The Rings of Akhaten (TV story)}}) The Doctor later spent [[3 (number)|three]] years trapped in a vast room within the TARDIS. ([[COMIC]]: ''[[Sky Jacks (comic story)|Sky Jacks]]'') When asked by the [[War Doctor]], he said he didn't know his age and had lost track, settling on "1200-and-something". He went on to say that he was so old he couldn't remember if he was [[lying]] about his age. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
  +
  ⚫
During the [[Siege of Trenzalore]], the Doctor told [[Theol]] that he was "nearly" [[1500 (number)|1500]], but he could be a few hundred years off either way. ([[PROSE]]: ''[[An Apple a Day... (short story)|An Apple a Day...]]'') By the time Clara saw him next, he had spent [[300 (number)|300]] years defending the world of [[Trenzalore]], making him at least 1500 years old. ([[TV]]: {{cs|The Time of the Doctor (TV story)}}) By the time the [[Mara]] began attacking the residents of Trenzalore, the Doctor had been there for [[750 (number)|750]] years, making him 1950. ([[PROSE]]: ''[[The Dreaming (short story)|The Dreaming]]'') In total, the Doctor spent 900 years on Trenzalore, making him roughly 2100 years old at the end of his first complete cycle of regenerations. ([[PROSE]]: ''[[Tales of Trenzalore (short story)|Tales of Trenzalore]]'')
   
 
=== Twelfth Doctor ===
  
=== Twelfth Doctor ===
−
Shortly after his regeneration, the [[Twelfth Doctor]] claimed to have lived for over [[2000 (number)|2000]] years. ([[TV]]: ''[[Deep Breath (TV story)|Deep Breath]]'') He possessed a [[Two Thousand Year Diary]] which he used to identify the [[Mire]]. ([[TV]]: ''[[The Girl Who Died (TV story)|The Girl Who Died]]'') The Doctor hid for 139 years in a [[stasis chamber]] in order to maintain his personal timeline. ([[TV]]: ''[[Under the Lake (TV story)|Under the Lake]]'', ''[[Before the Flood (TV story)|Before the Flood]]'')
 +
Shortly after his regeneration, the [[Twelfth Doctor]] claimed to have lived for over [[2000 (number)|2000]] years. ([[TV]]: {{cs|Deep Breath (TV story)}}) He apparently had a [[birthday]] which was celebrated by {{Gomez}}, who claimed to have remembered it while reasoning that he had forgotten. ([[TV]]: {{cs|Death in Heaven (TV story)}}) He continued to identify as 2000 after temporarily parting from [[Clara Oswald]]. ([[PROSE]]: ''[[Big Bang Generation (novel)|Big Bang Generation]]'') He possessed a [[Two Thousand Year Diary]] which he used to identify the [[Mire]]. ([[TV]]: {{cs|The Girl Who Died (TV story)}})
   
  +
The Doctor hid for 139 years in a [[stasis chamber]] in order to maintain his personal timeline. ([[TV]]: {{cs|Under the Lake (TV story)}}, {{cs|Before the Flood (TV story)}})
⚫
As a result of a Time Lord plot, the Doctor spent around [[4500000000 (number)|4.5 billion]] years ([[TV]]: ''[[Hell Bent (TV story)|Hell Bent]]'') trapped in a [[confession dial]], and, although it was divided amongst countless copies of the Doctor, he implied that he retained those memories upon escaping. ([[TV]]: ''[[Heaven Sent (TV story)|Heaven Sent]]'') The Doctor would admit to Osgood that he had lost track of his age. ([[COMIC]]: ''[[Robo Rampage (comic story)|Robo Rampage]]'') Whilst travelling alone, {{Gomez}} told the Doctor he was "getting old", having lived for centuries. ([[PROSE]]: ''[[Dr. Twelfth (novel)|Dr. Twelfth]]'')
  
   
  ⚫
As a result of a Time Lord plot, the Doctor spent around [[4500000000 (number)|4.5 billion]] years ([[TV]]: {{cs|Hell Bent (TV story)}}) trapped in a [[confession dial]], although it was divided amongst countless time-copies of the Doctor going through mostly the same events in a manner similar to a [[Time loop]]. ([[TV]]: {{cs|Heaven Sent (TV story)}}) Although he would usually ignore this when discussing his age, the Doctor did once tell a younger incarnation of {{Delgado}} that he was age [[4000000000 (number)|4 billion]]. ([[COMIC]]: ''[[Doorway to Hell (comic story)|Doorway to Hell]]'')
⚫
Sometime after this, the Doctor told a younger incarnation of {{Delgado}} that he was age [[4000000000 (number)|4 billion]]. ([[COMIC]]: ''[[Doorway to Hell (comic story)|Doorway to Hell]]'') He later claimed to be "only two thousand and... something." ([[COMIC]]: ''[[Invasion of the Mindmorphs (comic story)|Invasion of the Mindmorphs]]'')
  
   
  ⚫
The Doctor would admit to Osgood that he had lost track of his age. ([[COMIC]]: ''[[Robo Rampage (comic story)|Robo Rampage]]'') Whilst travelling alone, Missy told the Doctor he was "getting old", having lived for centuries. ([[PROSE]]: ''[[Dr. Twelfth (novel)|Dr. Twelfth]]'') He later claimed to be "only two thousand and... something". ([[COMIC]]: ''[[Invasion of the Mindmorphs (comic story)|Invasion of the Mindmorphs]]'')
⚫
At some point afterwards, the Doctor spent a [[24 (number)|twenty-four]] year night on [[Darillium]] with [[River Song]]. ([[TV]]: ''[[The Husbands of River Song (TV story)|The Husbands of River Song]]'')
  
   
  ⚫
At some point afterwards, the Doctor spent a [[24 (number)|twenty-four]] year night on [[Darillium]] with [[River Song]]. ([[TV]]: {{cs|The Husbands of River Song (TV story)}})
−
"A long time ago", the Doctor made an oath to guard the body of {{Gomez}} for [[1000 (number)|1000]] years. After this he transported her to [[Vault (The Pilot)|the Vault]] beneath [[St Luke's University]]. ([[TV]]: ''[[Extremis (TV story)|Extremis]]'') In late [[2016]], he had apparently been lecturing at the university for over [[50 (number)|fifty]] years, although some rumours said he had been there for over [[70 (number)|70]]. ([[TV]]: ''[[The Pilot (TV story)|The Pilot]]'') Nevertheless, [[Nardole]] still identified the Doctor as being 2000 years old. ([[PROSE]]: ''[[I Am the Doctor (short story)|I Am the Doctor]]'')
  
   
−
Before his first adventure together with [[Bill Potts]], the Doctor told [[Nardole]] that he was over 2000 years old. ([[TV]]: ''[[Smile (TV story)|Smile]]'') A few hours after this, he echoed the same thing to Bill herself. ([[TV]]: ''[[Thin Ice (TV story)|Thin Ice]]'') On meeting [[the Monks]] in a [[Shadow World|simulation]], [[Twelfth Doctor (Shadow World)|the Doctor]] gave his age as "two thousand years at the last count". ([[TV]]: ''[[Extremis (TV story)|Extremis]]'')
 +
"A long time ago", the Doctor made an oath to guard the body of Missy for [[1000 (number)|1000]] years. After this he transported her to [[The Vault (The Pilot)|the Vault]] beneath [[St Luke's University]]. ([[TV]]: {{cs|Extremis (TV story)}}) In late [[2016]], he had apparently been lecturing at the university for over [[50 (number)|fifty]] years, although some rumours said he had been there for over [[70 (number)|70]]. ([[TV]]: {{cs|The Pilot (TV story)}}) Nevertheless, [[Nardole]] still identified the Doctor as being 2000 years old. ([[PROSE]]: ''[[I Am the Doctor (short story)|I Am the Doctor]]'')
   
  +
Before his first adventure together with [[Bill Potts]], the Doctor told Nardole that he was over 2000 years old. ([[TV]]: {{cs|Smile (TV story)}}) A few hours after this, he echoed the same thing to Bill herself. ([[TV]]: {{cs|Thin Ice (TV story)}}) On meeting the [[Monk (species)|Monks]] in a [[Shadow World|simulation]], [[Twelfth Doctor (Shadow World)|the Doctor]] gave his age as "two thousand years at the last count". ([[TV]]: {{cs|Extremis (TV story)}})
⚫
Shortly before regenerating, the Twelfth Doctor, in an encounter with his [[First Doctor|first incarnation]] just prior to his own regeneration, commented that [[1500 (number)|1500]] years of "[[rock'n'roll]]" had passed in the interim. ([[TV]]: ''[[Twice Upon a Time (TV story)|Twice Upon a Time]]'')
  
  +
  ⚫
Shortly before regenerating, the Twelfth Doctor, in an encounter with his [[First Doctor|first incarnation]] just prior to his own regeneration, commented that [[1500 (number)|1500]] years of "[[rock'n'roll]]" had passed in the interim. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
   
 
=== Thirteenth Doctor ===
  
=== Thirteenth Doctor ===
−
Immediately following regeneration, the [[Thirteenth Doctor]] was at least 1500 years older than the [[Second Doctor]], making her a minimum of 1950 years old. ([[PROSE]]: ''[[Iceberg (novel)|Iceberg]]'', [[TV]]: ''[[Twice Upon a Time (TV story)|Twice Upon a Time]]'')
 +
Immediately following regeneration, the [[Thirteenth Doctor]] was at least 1500 years older than the [[Second Doctor]], making her a minimum of 1950 years old. ([[PROSE]]: ''[[Iceberg (novel)|Iceberg]]'', [[TV]]: {{cs|Twice Upon a Time (TV story)}})
  +
  +
The Doctor said that she was over 2000 years old whilst talking to the TARDIS. ([[AUDIO]]: {{cs|The Romanov Project (audio story)}}) She told her companions that she was thousands of years old, so old she did not even [[The Doctor's memories|remember]] her true age anymore. ([[TV]]: {{cs|Fugitive of the Judoon (TV story)}})
  +
  +
After being captured by the [[Judoon]], ([[TV]]: {{cs|The Timeless Children (TV story)}}) the Doctor spent "a rough few decades" - with a minimum of 19 years - in a [[maximum security facility]] before being broken out by [[Jack Harkness]]. ([[TV]]: {{cs|Revolution of the Daleks (TV story)}})
  +
  +
The Doctor kept a [[Five Thousand Year Diary]] during her travels with [[Yasmin Khan]] and [[Dan Lewis]]. ([[GAME]]: ''[[Lost in Time (video game)|Lost in Time]]'')
  +
  +
=== Fourteenth Doctor ===
  +
After being asked why he never spoke about [[Melanie Bush]] or his other [[companion]]s by [[Donna Noble]], the [[Fourteenth Doctor]] dismissively told her that he was a [[1000000000 (number)|billion]]-years-old, and would never be able to talk about everyone he ever met as he wouldn't have time to finish. ([[TV]]: {{cs|The Giggle (TV story)|timestamp=00:19:00}})
  +
  +
=== The Valeyard ===
  +
The Valeyard told [[Bernice Summerfield]] that he was "thousands of years old". ([[AUDIO]]: ''[[Every Dark Thought (audio story)|Every Dark Thought]]'')
   
 
== Behind the scenes ==
  
== Behind the scenes ==
 
=== The "900" discrepancy ===
  
=== The "900" discrepancy ===
−
Before the Eleventh Doctor's 200-year farewell tour between [[TV]]: ''[[The God Complex (TV story)|The God Complex]]'' and ''[[Closing Time (TV story)|Closing Time]]'', the writers of the 2005 revival of the series explicitly described the Doctor as around 900 years old, despite contrary statements on TV and expanded media. It is one of the few notable contradictions of previously established material in the revival. To date no episode, novel or comic strip has addressed the discrepancy directly.
 +
Before the Eleventh Doctor's 200-year farewell tour between [[TV]]: {{cs|The God Complex (TV story)}} and {{cs|Closing Time (TV story)}}, the writers of the 2005 revival of the series explicitly described the Doctor as around 900 years old, despite contrary statements on TV and expanded media. It is one of the few notable contradictions of previously established material in the revival. The discrepancy was finally addressed in the short story ''[[Doctor Who and the Time War (short story)|Doctor Who and the Time War]]'' released in [[2020 (releases)|2020]], which explained that in the [[Last Great Time War]] the Doctor was aged and de-aged multiple times. Eventually "feeling around one thousand" by the end of the War, he rounded his age down to 900.
   
−
=== "They have no clue" ===
 +
=== The Doctor "has no clue" ===
 
A simple and self-evident theory is that the Doctor doesn't know how old they are because they have lost count, constantly travelling backward and forward through time making it difficult to measure one's lifespan at all. This theory began as [[fanon]], with the Doctor occasionally admitting to being unsure of his age in spinoff media. ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'', [[PROSE]]: ''[[Vampire Science (novel)|Vampire Science]]'')
  
A simple and self-evident theory is that the Doctor doesn't know how old they are because they have lost count, constantly travelling backward and forward through time making it difficult to measure one's lifespan at all. This theory began as [[fanon]], with the Doctor occasionally admitting to being unsure of his age in spinoff media. ([[COMIC]]: ''[[Doctor Who and the Time Witch (comic story)|Doctor Who and the Time Witch]]'', [[PROSE]]: ''[[Vampire Science (novel)|Vampire Science]]'')
   
−
This is the theory subscribed to by ''[[Doctor Who]]'' [[executive producer]] and [[head writer]] [[Steven Moffat]] in an interview with [[SFX (magazine)|SFX]]: {{quote|The thing I keep banging on about is that he doesn't know what age he is. He's lying. How could he know, unless he's marking it on a wall? He could be 8,000 years old, he could be a million. He has no clue. The calendar will give him no clues.|[[Steven Moffat]], [[SFX (magazine)|SFX]], May 2010}}
 +
This is the theory subscribed to by ''[[Doctor Who]]'' [[executive producer]] and [[head writer]] [[Steven Moffat]] in an interview with [[SFX (magazine)|SFX]]: "The thing I keep banging on about is that he doesn't know what age he is. He's lying. How could he know, unless he's marking it on a wall? He could be 8,000 years old, he could be a million. He has no clue. The calendar will give him no clues."<ref>[[Steven Moffat]], [[SFX (magazine)|SFX]], May 2010</ref> This theory would be voiced in {{cs|The Day of the Doctor (TV story)}}, written by Steven Moffat, when the [[Eleventh Doctor]] is asked by the [[War Doctor]] how old he is now. The [[Thirteenth Doctor]] also later admitted to being unsure of her age in {{cs|Fugitive of the Judoon (TV story)}}.
   
  +
=== The Doctor lies ===
−
This theory would be voiced in ''[[The Day of the Doctor (TV story)|The Day of the Doctor]]'', written by Steven Moffat, when the [[Eleventh Doctor]] is asked by the [[War Doctor]] how old he is now.
  
  +
Another theory was that the Doctor lied about their age. This is supported in the audio ''[[The Lost Resort (audio story)|The Lost Resort]]'', when the [[Fifth Doctor]] states that a [[Time Lord]] will always lie when asked their age.
   
−
=== Non-fictional sources ===
 +
=== Other invalid sources ===
  +
The age of [[Doctor Who (Doctor Who and Crayola)|the incarnation of the Doctor]] seen in ''[[Doctor Who and Crayola (TV story)|Doctor Who and Crayola]]'' is given as over 1 million years by his arch nemesis [[Crayola]].
−
The first non-fictional writing about regeneration, ''[[The Phoenix in the TARDIS]]'', stated that the [[First Doctor]] was about 900 at the time he [[regenerated]] into the [[Second Doctor]].
  
   
−
In ''[[The Weakest Link: Doctor Who Special]]'', [[Tenth Doctor]] actor [[David Tennant]] gave his age as 925 while introducing himself in-character.
 +
An [[The Doctor (Introduction to the Night)|incarnation]] of the Doctor, portrayed by [[Fourth Doctor]] actor [[Tom Baker]], who featured in ''[[Introduction to the Night (TV story)|Introduction to the Night]]'' gave his age as [[700 (number)|700]] years old while referring to himself in the third person.
−  
−
=== Invalid sources ===
  
−
An [[The Doctor (Introduction to the Night)|incarnation]] of the Doctor, portrayed by [[Fourth Doctor]] actor [[Tom Baker]], who featured in ''[[Introduction to the Night (TV story)|Introduction to the Night]]'' gave his age as [[700 (number)|700]] years old while refering to himself in the third person.
  
   
 
In ''[[The Last Dalek (video game)|The Last Dalek]]'', a [[video game]] based on [[TV]]: ''[[Dalek (TV story)|Dalek]]'', the [[Metaltron]]'s memory files state the [[Ninth Doctor]]'s age as "unknown".
  
In ''[[The Last Dalek (video game)|The Last Dalek]]'', a [[video game]] based on [[TV]]: ''[[Dalek (TV story)|Dalek]]'', the [[Metaltron]]'s memory files state the [[Ninth Doctor]]'s age as "unknown".
  +
  +
In a brief in-universe portion of ''[[The Weakest Link: Doctor Who Special]]'', [[Tenth Doctor]] actor [[David Tennant]] gave his age as 925 while introducing himself in-character.
   
 
== External links ==
  
== External links ==
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[[Category:The Doctor]]

Latest revision as of 15:03, 10 April 2024

Contradictory information has pointed at different estimates of the Doctor's age, both in conversations and in terms of the length of various incarnations.

Statements and information[]

It was difficult to determine the Doctor's life expectancy, given their ability to regenerate. The Second Doctor once stated that as a Time Lord, he could "live forever, barring accidents". (TV: The War Games [+]Terrance Dicks and Malcolm Hulke, Doctor Who season 6 (BBC1, 1969).) A Time Lord named Handrel claimed that a single incarnation of a Time Lord could live for around ten thousand years. (PROSE: The Time Lord's Story)

It was also evident that Time Lords aged in a way different from humans. The Fourth Doctor once told Sharon Davies that he was a teenager for fifty years. (COMIC: Doctor Who and the Time Witch) He also went through spans of linear time longer than average human lifespans without growing visibly older. (PROSE: Escape Velocity, AUDIO: Orbis, TV: The Impossible Astronaut [+]Steven Moffat, Doctor Who series 6 (BBC One, 2011).)

Cindy Wu pointed out the uncertainty in whether the Doctor gave his age in Gallifreyan or human years, "or some cosmic measurement tied to absolute zero universal center?" (COMIC: The Lost Dimension)

The Fifth Doctor once told Nyssa not to ask a Time Lord their age as they "would only lie to you". (AUDIO: The Lost Resort)

By the time he regenerated into the Eleventh Doctor, the Doctor "had long since abandoned trying to keep track of [his age] in any way that mattered to anybody but him". (PROSE: Nothing O'Clock)

According to one account, the Doctor was the Timeless Child, a being from another universe with regenerative capabilities far beyond those of the Time Lords. This account suggested that the Time Lords' own regenerative abilities were derived from those of the Timeless Child, as a result of years of experimentation by the Shobogan traveller Tecteun, who was also responsible for discovering the Timeless Child in the first place. As a result, the Doctor was even older than the Time Lords themselves, making them far older than some accounts would suggest. (TV: The Timeless Children [+]Chris Chibnall, Doctor Who series 12 (BBC One, 2020).)

Infinity Doctor[]

In one state of reality, the Doctor was one of only two members of the High Council of Time Lords, the other being the Magistrate, who were less than 2000 years old. (PROSE: The Infinity Doctors)

First Doctor[]

The First Doctor was eight when he entered the Time Lord Academy, along with the Master. (TV: The Sound of Drums [+]Russell T Davies, Doctor Who series 3 (BBC One, 2007).) He apparently left primary school at the age of 45. (PROSE: Shroud of Sorrow) The Tenth Doctor later described himself as having been "just a kid" when he first visited the Medusa Cascade, at the age of 90. (TV: The Stolen Earth [+]Russell T Davies, Doctor Who series 4 (BBC One, 2008). The Fourth Doctor said he was a "teenager" for fifty years. (COMIC: Doctor Who and the Time Witch) The Doctor spent "centuries" studying at the Academy. (COMIC: Mortal Beloved) Magnus chided the Doctor for not regenerating and for holding on to this incarnation as long as he did. (COMIC: Flashback)

When the Fourth Doctor was 759, (TV: The Ribos Operation) Romana noted that the Doctor had been travelling in the TARDIS for 523 years. This would have made the Doctor about 236 when he first "borrowed" the TARDIS and left Gallifrey. (TV: The Pirate Planet) This figure was broadly supported by the TARDIS itself. When transferred into a humanoid body, the TARDIS said the Doctor had travelled with it for 700 years. At this point, the Eleventh Doctor was said to be around 909 years old, putting his age when he stole the TARDIS at 209. (TV: The Impossible Astronaut [+]Steven Moffat, Doctor Who series 6 (BBC One, 2011)., The Doctor's Wife [+]Neil Gaiman, Doctor Who series 6 (BBC One, 2011).)

During the time Susan Foreman travelled with the Doctor, Ian Chesterton, and Barbara Wright, she knew that despite his apparent maturity, in terms of their own species the Doctor was considered an adolescent. (AUDIO: Here There Be Monsters) While visiting the year 64, the Doctor stated he had been travelling in the TARDIS for 60 years. (PROSE: Byzantium!)

To the best of his memory, the Doctor recalled having met Bill Cody just before his 400th birthday. (COMIC: Gaze of the Medusa)

During the Time Destructor Incident, the Doctor told Steven Taylor that he was "already" over 700 years old, explaining that the Time Destructor would not affect him as gravely as a human. (PROSE: The Mutation of Time)

According to one account, the Doctor was nine hundred when he went through the "strange psychological storm" that renewed him into a younger form, (PROSE: The Phoenix in the Tardis [+]unclear authorship, The Dr Who Annual 1968 (World Distributors, 1967). Page 20.) while according to another, he was was four-hundred and fifty years old when he regenerated, (PROSE: Iceberg) roughly 1,500 years before his fourteenth regeneration. (TV: Twice Upon a Time [+]Steven Moffat, Doctor Who Christmas Special 2017 (BBC One, 2017).)

Second Doctor[]

Shortly after regeneration, the Second Doctor told Ben Jackson and Polly Wright that it had been over 750 years since he left his home planet. (PROSE: The Power of the Daleks)

The Doctor told Victoria Waterfield he was "something like" 450 years old in Earth terms. (TV: The Tomb of the Cybermen) He was separated from his companions for a few years due to the effects of being on a planet in orbit of a pulsar. (AUDIO: Shadow of Death) He gave his age as a "tender" 500 shortly before his regeneration. (COMIC: The Brotherhood)

Third Doctor[]

The Third Doctor told Liz Shaw that his life covered "several thousand years". (TV: Doctor Who and the Silurians) He started to say to Professor Kettering that he had been a scientist for "several thousand—", but stopped himself before completing the sentence. (TV: The Mind of Evil) He also repeated the claim that he was "thousands of years old" to a psychiatrist, one of several extraordinary assertions which contributed to the psychiatrist thinking that the Doctor was a mentally-ill human man. (TV: The Shrink) By one account, the Third Doctor's cheeks were 725 years old. (PROSE: Doctor Who and the Green Death)

The Doctor told Sarah Jane Smith that he was older than 200. (TV: The Time Warrior)

Fourth Doctor[]

The Fourth Doctor gave his age as 748 shortly after he had first regenerated, (PROSE: A Device of Death) and later on he consistently said he was "something like 750" or 749 when he travelled with Sarah Jane Smith, (TV: Pyramids of Mars, The Android Invasion, The Brain of Morbius, The Seeds of Doom) "about" 719 years older than Sarah was. (PROSE: Sarah Jane and the Temple of Eyes) By one account, from the Doctor's perspective, "untold years" had passed between the First Doctor's escape from Gallifrey and the Fourth Doctor's mission to avert the genesis of the Daleks. (PROSE: Doctor Who and the Genesis of the Daleks)

He later claimed to be 750 when travelling with Leela, (TV: The Robots of Death) which was "middle-aged", (AUDIO: Destroy the Infinite) and 756 with Romana during her first incarnation just before finding the first segment of the Key to Time. Romana corrected him, saying he was 759. (TV: The Ribos Operation) In one letter addressed to a human audience, the Doctor claimed in short succession to be "over 750 years old (...) by your Earth years" and then simply "750 years old". (PROSE: A Letter from the Doctor)

After arriving in Greece during the rule of Phillip II, the Doctor was forced to remain in the company of Alexander the Great from when he was a student of Aristotle (between ages 13 to 16) to his death aged 32, totalling between 16-19 years. (PROSE: Doctor Who Discovers the Conquerors

The Doctor and Romana spent 30 years travelling through the nexus point of the TARDIS. (PROSE: Heart of TARDIS) Before they assembled the Key to Time, he claimed that he was "nearly" 760. (TV: The Power of Kroll) He later gave that as his age to Henry Gordon Jago and George Litefoot. (AUDIO: The Justice of Jalxar) He was still attributed that age while fighting Skagra. (PROSE: Shada) However, on another adventure with Romana's second incarnation, the Doctor claimed he couldn't remember his age but believed it was 751 or 752. (AUDIO: The Doomsday Contract) He also told Celia Soames that he was over 700 years old. (AUDIO: The Labyrinth of Buda Castle)

When he met Sharon Davies, the Doctor claimed to be 730 years old, and blamed his age for his faulty memory. (COMIC: Doctor Who and the Star Beast) Another time while travelling with Sharon, after ageing four years due to the chrono-compensator, he decided he would still think himself as "743... or was it 730, I never can remember". (COMIC: Doctor Who and the Time Witch) He claimed at various times to be anything from 400 to a shade over 1000 years old. (PROSE: Evolution) Romana told the Doctor that after the first few centuries, it would be hard to remember his exact age. (TV: The Ribos Operation)

Certainly, the Doctor noted that he was much older then 150 as early as his travels with Sarah Jane. (COMIC: Hubert's Folly)

Fifth Doctor[]

Upon the Doctor's regeneration into their fifth incarnation, he was nearly 800 years old. (PROSE: Castrovalva) By another account, he was already 813 when he regenerated. (PROSE: Cold Fusion) Whilst travelling alone with Nyssa, he claimed to be "about 800", (PROSE: Saturn) and, whilst travelling with her, Tegan and Marc, once told her not to ask a Time Lord their age as they would only lie. (AUDIO: The Lost Resort)

Later in his life, he stated that he was "pushing 900". (AUDIO: Omega) He told Peri Brown that "in [her] years" he was "about 850". (PROSE: The Ultimate Treasure) While travelling with Erimem and Peri, the Doctor claimed to be "not even middle-aged by [Time Lord] standards". (AUDIO: No Place Like Home) An age-scanning device identified him as being almost 900 when he was reunited with Abby and Zara, some time after being joined by Peri. (AUDIO: The Garden of Storms)

Sixth Doctor[]

Some 80 years passed between the Doctor's first and second meetings with Becky. (PROSE: Teach Yourself Ballroom Dancing) Peri believed that the Sixth Doctor was 760 years old, (PROSE: The Two Doctors) although he later told her that he was 900 (TV: Revelation of the Daleks, The Mysterious Planet) and said that he was "not a day over nine hundred years old" when threatened with death by stoning. (PROSE: The Mysterious Planet)

The Doctor told Will Hoffman that he had not visited Beirut since attending the 3074 World Cup "a thousand years" ago. (PROSE: Incongruous Details)

The Doctor spent one hundred years travelling in the TARDIS while Evelyn and Jacob, Mary and Peter Williams recovered from being frozen in time. (AUDIO: Bedtime Story)

Charlotte Pollard believed that the Doctor was seven times older than she could ever hope to be. (AUDIO: These Stolen Hours)

While travelling with Flip Jackson, he spent a century frozen in Vortex Ice. (AUDIO: Vortex Ice) Flip later called him around 900, but she was not sure on the exact age. The Doctor later told her that he had lived for almost a millennium. (AUDIO: The Middle)

The Doctor told his companion Constance Clarke that he was over 900 years old. (AUDIO: Absolute Power)

By the time he was travelling with Melanie Bush, he had blown out the candles on his 900th birthday cake and was approaching 930. (AUDIO: The One Doctor) Soon after, Mel noted that the Doctor was approximately 900 years old. (AUDIO: The Juggernauts)

The Malamud noted that, because of the many volumes about the Doctor's life, he must be 20,000 years old. The Doctor didn't contradict them. (PROSE: The Book of My Life) At another time, he was 991 during his travels with Mel (PROSE: A Wee Deoch an ...?) and, whilst travelling with Mel and Hebe, said that he was almost a thousand. (AUDIO: The Tides of the Moon) He was 953 years old when he regenerated. (TV: Time and the Rani)

Seventh Doctor[]

Hours after his regeneration, the Seventh Doctor unlocked a door in the First Rani's laboratory with the numerical code "953", saying it was both his age and the Rani's. (TV: Time and the Rani) Whilst rewiring the Dalek transmat in the cellar of Coal Hill, he said to Allison Williams that he had "900 years experience." (TV: Remembrance of the Daleks) On Heaven, Ace described him in her mind as 783. (PROSE: Love and War) While travelling with her and Bernice Summerfield, the Doctor claimed to be 943. (PROSE: Lucifer Rising) The Doctor later had his 1,000th birthday while in their company. (PROSE: Set Piece) When he found Bernice in the TARDIS boot cupboard he stated he'd lived for 'over a millennium'. (PROSE: Original Sin) While in Japan, the Doctor reckoned he was at least 1003. (PROSE: The Room with No Doors)

While travelling with Ace and Hex, the Doctor noted that he had lived 900 years. (AUDIO: Mask of Tragedy)

On arriving in the Forge, the Seventh Doctor claimed that "a century or three" had passed in his personal timeline since his previous incarnation visited it. (AUDIO: Project: Lazarus)

He believed that he was nearly a thousand years old before he regenerated. (PROSE: The Novel of the Film) By his own estimate afterward he would have been 1009 when he regenerated, though he admitted he may have lost count at some point. (PROSE: Vampire Science)

Eighth Doctor[]

Three years after his regeneration, the Eighth Doctor calculated his total age to be 1012. He was unsure and might have lost count, and so preferred to simply begin counting at his most recent regeneration, giving his age as "three" when asked. (PROSE: Vampire Science) The Doctor later stated his age as 1018, (PROSE: Autumn Mist) having spent three years imprisoned. (PROSE: Seeing I) The Doctor aged while trapped as an amnesiac on Earth in "real time" between the late 19th century (PROSE: The Ancestor Cell) and the year 2001, making him at least 1125 by the end of this crisis. (PROSE: Escape Velocity)

When he partook in a bloodfasting with the vampire Joanna Harris (who was over 950 years old at the time), Harris was able to see the Doctor's memories through their temporary psychic link, and was instantly struck by the fact that he was "far older" than even she, who was the oldest of her vampire coven. (PROSE: Vampire Science)

While battling the Ice Warriors, the Doctor reckoned he was 1200 years old. (PROSE: The Dying Days) While travelling with Charley Pollard, he said he was "nine hundred and fifty something years old". (AUDIO: Neverland) Not long after, while travelling in the Divergent Universe, he was noted to have had "over a thousand years worth of collected experience" by a cave creature in the form of Major Koth. (AUDIO: The Twilight Kingdom) While travelling with Lucie Miller, the Doctor spent 600 years on the planet Orbis. He later mentioned that he rounded and adjusted his age based on different year lengths in different parts of the universe, claiming that in one obscure galaxy he would be two years old. (AUDIO: Orbis) The Doctor also spent several months travelling with Nyssa on board The Traken during the Last Great Time War. (AUDIO: A Heart on Both Sides)

The Doctor's ninth incarnation[]

There existed some conflict as to the true identity of the Doctor's ninth incarnation, with the Eighth Doctor being aware of several potential future selves. (PROSE: The Tomorrow Windows, The Gallifrey Chronicles)

"Listless-looking" Ninth Doctor[]

During his travels with Emma at a point where he hadn't been to Earth in several years, a Ninth Doctor described himself as "over 800 years old". (PROSE: Who's After Your Cash [+]Rowan Atkinson, The Mirror Official Comic Relief Nosepaper (Daily Mirror, 1999).)

War Doctor[]

The Last Great Time War, in which the War Doctor fought, lasted no less than 400 years of linear time, but the various temporal aspects to the War meant that, in effect, the fighting had been going on for eternity. At the time of his experiences in the Tantalus Spiral, which led him to decide the war could go on "no more", this incarnation's age was a hundred years or more. (PROSE: Engines of War)

Shortly before the end of his life, the War Doctor said he was 400 years younger than the Eleventh Doctor when he gave his age as "twelve hundred or something", making him somewhere between 800 and 900 years old. (TV: The Day of the Doctor [+]Steven Moffat, 50th Anniversary Specials (BBC One, 2013).)

"Big-eared" Ninth Doctor[]

The Ninth Doctor with big ears (TV: Rose [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).) and a hawklike face (PROSE: The Tomorrow Windows) spent "weeks" having adventures between first encountering Rose Tyler in Henrik's, and turning up at the meal where he encountered Auton Mickey. (PROSE: Rose [+]Russell T Davies, adapted from Rose (Russell T Davies), Target novelisations (Target Books, 2018).)

The Doctor decided against revealing his age to an assistant at B&Q in March 2005, despite meaning he wouldn't get the over-65s 10% discount. Between meeting the Doctor in 1977 and seeing photos of him in 2005, JR's mum mused that the Doctor "hadn't aged a day". Some individuals who knew of the Doctor being in certain time periods prior to the 21st century, gave estimates towards the Doctor's age: Marcus Butler, knowing that the Ninth Doctor joined in with his dad's skiffle band in the 1960s, reasoned that the Doctor must be in his seventies. (PROSE: Have You Seen This Man?)

After Rose asked what he meant when he said "900 years of time and space", the Doctor told her it was "[his] age". (TV: Aliens of London [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).)

He spent 28 years waiting on Earth to meet up with Rose in 1922, (AUDIO: The Other Side) and looked visibly older to Rose after he returned from his journey to the Causubus ship. (PROSE: Rose and the Snow Window) He later considered himself to have had "900 years of phone box travel". (TV: The Empty Child [+]Steven Moffat, Doctor Who series 1 (BBC One, 2005).)

Tenth Doctor[]

The Tenth Doctor was 900 while travelling with Rose Tyler. (PROSE: The Hero Factor) During one of their adventures, he spent several months on Earth learning how to sculpt. (PROSE: The Stone Rose)

When the Doctor was imprisoned on Volag-Noc, his brain was scanned for criminal activity, revealing that some of his memories dated back over 3000 years. Around the time of this incident, the Doctor claimed to have spent at least 33 months searching for Martha Jones in deep space. (TV: The Infinite Quest) During his travels with Martha, the Doctor spent several months living in various time periods on Earth (TV: Human Nature [+]Paul Cornell, adapted from Human Nature (Paul Cornell), Doctor Who series 3 (BBC One, 2007). / The Family of Blood [+]Paul Cornell, adapted from Human Nature (Paul Cornell), Doctor Who series 3 (BBC One, 2007)., Blink) and inside the Valiant during the so-called Year That Never Was. (TV: Last of the Time Lords [+]Russell T Davies, Doctor Who series 3 (BBC One, 2007).)

He said he was 903 years old while attempting to save the Titanic. (TV: Voyage of the Damned [+]Russell T Davies, Doctor Who Christmas Special 2007 (BBC One, 2007).)

While travelling alone, he claimed to be 904 years old. (PROSE: Number 1, Gallows Gate Road)

He again claimed to be 903 during an adventure with Donna Noble. (AUDIO: The Nemonite Invasion) During another adventure with Donna, on the planet Calibris, the Doctor shot himself with several time reaver guns. While ten minutes passed for those around him, he experienced 7 centuries frozen in time. (AUDIO: Time Reaver)

After meeting Gabby Gonzalez, the Doctor stated that he was over 900 years old. (COMIC: The Arts in Space) In a later adventure in Nevada, he said 900 again, suggesting he was approximating. (TV: Dreamland)

In an encounter with the Fourth Doctor while travelling alone, the Tenth Doctor told his past self he was "barely half a millennium" older. (AUDIO: Out of Time)

While confronting a rabbit he briefly believed to be a Zygon in disguise in Elizabethan England, the Doctor said he was 904 (TV: The Day of the Doctor [+]Steven Moffat, 50th Anniversary Specials (BBC One, 2013).) or 900 years old. (PROSE: The Day of the Doctor [+]Steven Moffat, adapted from The Day of the Doctor (Steven Moffat), Target novelisations (Target Books, 2018).) Just prior to regenerating, he gave his age as 906. (TV: The End of Time)

Eleventh Doctor[]

Not long after Amy Pond first encountered the Eleventh Doctor, he told her that he was 907. (TV: Flesh and Stone [+]Steven Moffat, Doctor Who series 5 (BBC One, 2010).) Later in their travels, he claimed to be 908. (COMIC: The Cleverest King) Indeed, at Lake Silencio in Utah, Amy would recall that the Doctor was 908 the last time she saw him. (TV: The Impossible Astronaut [+]Steven Moffat, Doctor Who series 6 (BBC One, 2011).)

During his travels with Alice Obiefune, the Doctor claimed to have lived "900-odd-years". (COMIC: Pull to Open)

When his future self invited him to Lake Silencio, the younger Doctor gave his age as 909. (TV: The Impossible Astronaut [+]Steven Moffat, Doctor Who series 6 (BBC One, 2011).) The Doctor later commented that he was around George's age of eight "about a thousand years ago". (TV: Night Terrors [+]Mark Gatiss, Doctor Who series 6 (BBC One, 2011).)

When he met Amy, Rory, River and Canton at Lake Silencio, his older self told Amy that he was 1103. (TV: The Impossible Astronaut [+]Steven Moffat, Doctor Who series 6 (BBC One, 2011).) Indeed, the Doctor at this point in his life had just finished his farewell tour, which appeared to have lasted about 200 years. (TV: The Wedding of River Song [+]Steven Moffat, Doctor Who series 6 (BBC One, 2011).)

By the time he had left Amy and Rory, but still offered them brief trips in the TARDIS, he stated his age as 1200. (TV: A Town Called Mercy [+]Toby Whithouse, Doctor Who series 7 (BBC One, 2012).) When asked if he knew any tricks, the Doctor stated that he'd been escaping for "about a thousand years, give or take a century or so". (PROSE: Magic of the Angels)

Whilst travelling with Valarie Lockwood, the Doctor said that he had lived his life for "thousands and thousands" of years. (AUDIO: The End)

When he met Clara Oswald, he rounded his age down to 1000. (TV: The Bells of Saint John [+]Steven Moffat, Doctor Who series 7 (BBC One, 2013)., The Rings of Akhaten [+]Neil Cross, Doctor Who series 7 (BBC One, 2013).) The Doctor later spent three years trapped in a vast room within the TARDIS. (COMIC: Sky Jacks) When asked by the War Doctor, he said he didn't know his age and had lost track, settling on "1200-and-something". He went on to say that he was so old he couldn't remember if he was lying about his age. (TV: The Day of the Doctor [+]Steven Moffat, 50th Anniversary Specials (BBC One, 2013).)

During the Siege of Trenzalore, the Doctor told Theol that he was "nearly" 1500, but he could be a few hundred years off either way. (PROSE: An Apple a Day...) By the time Clara saw him next, he had spent 300 years defending the world of Trenzalore, making him at least 1500 years old. (TV: The Time of the Doctor [+]Steven Moffat, Doctor Who Christmas Special 2013 (BBC One, 2013).) By the time the Mara began attacking the residents of Trenzalore, the Doctor had been there for 750 years, making him 1950. (PROSE: The Dreaming) In total, the Doctor spent 900 years on Trenzalore, making him roughly 2100 years old at the end of his first complete cycle of regenerations. (PROSE: Tales of Trenzalore)

Twelfth Doctor[]

Shortly after his regeneration, the Twelfth Doctor claimed to have lived for over 2000 years. (TV: Deep Breath [+]Steven Moffat, Doctor Who series 8 (BBC One, 2014).) He apparently had a birthday which was celebrated by Missy, who claimed to have remembered it while reasoning that he had forgotten. (TV: Death in Heaven [+]Steven Moffat, Doctor Who series 8 (BBC One, 2014).) He continued to identify as 2000 after temporarily parting from Clara Oswald. (PROSE: Big Bang Generation) He possessed a Two Thousand Year Diary which he used to identify the Mire. (TV: The Girl Who Died [+]Jamie Mathieson and Steven Moffat, Doctor Who series 9 (BBC One, 2015).)

The Doctor hid for 139 years in a stasis chamber in order to maintain his personal timeline. (TV: Under the Lake [+]Toby Whithouse, Doctor Who series 9 (BBC One, 2015)., Before the Flood [+]Toby Whithouse, Doctor Who series 9 (BBC One, 2015).)

As a result of a Time Lord plot, the Doctor spent around 4.5 billion years (TV: Hell Bent [+]Steven Moffat, Doctor Who series 9 (BBC One, 2015).) trapped in a confession dial, although it was divided amongst countless time-copies of the Doctor going through mostly the same events in a manner similar to a Time loop. (TV: Heaven Sent [+]Steven Moffat, Doctor Who series 9 (BBC One, 2015).) Although he would usually ignore this when discussing his age, the Doctor did once tell a younger incarnation of the Master that he was age 4 billion. (COMIC: Doorway to Hell)

The Doctor would admit to Osgood that he had lost track of his age. (COMIC: Robo Rampage) Whilst travelling alone, Missy told the Doctor he was "getting old", having lived for centuries. (PROSE: Dr. Twelfth) He later claimed to be "only two thousand and... something". (COMIC: Invasion of the Mindmorphs)

At some point afterwards, the Doctor spent a twenty-four year night on Darillium with River Song. (TV: The Husbands of River Song [+]Steven Moffat, Doctor Who Christmas Special 2015 (BBC One, 2015).)

"A long time ago", the Doctor made an oath to guard the body of Missy for 1000 years. After this he transported her to the Vault beneath St Luke's University. (TV: Extremis [+]Steven Moffat, Doctor Who series 10 (BBC One, 2017).) In late 2016, he had apparently been lecturing at the university for over fifty years, although some rumours said he had been there for over 70. (TV: The Pilot [+]Steven Moffat, Doctor Who series 10 (BBC One, 2017).) Nevertheless, Nardole still identified the Doctor as being 2000 years old. (PROSE: I Am the Doctor)

Before his first adventure together with Bill Potts, the Doctor told Nardole that he was over 2000 years old. (TV: Smile [+]Frank Cottrell-Boyce, Doctor Who series 10 (BBC One, 2017).) A few hours after this, he echoed the same thing to Bill herself. (TV: Thin Ice [+]Sarah Dollard, Doctor Who series 10 (BBC One, 2017).) On meeting the Monks in a simulation, the Doctor gave his age as "two thousand years at the last count". (TV: Extremis [+]Steven Moffat, Doctor Who series 10 (BBC One, 2017).)

Shortly before regenerating, the Twelfth Doctor, in an encounter with his first incarnation just prior to his own regeneration, commented that 1500 years of "rock'n'roll" had passed in the interim. (TV: Twice Upon a Time [+]Steven Moffat, Doctor Who Christmas Special 2017 (BBC One, 2017).)

Thirteenth Doctor[]

Immediately following regeneration, the Thirteenth Doctor was at least 1500 years older than the Second Doctor, making her a minimum of 1950 years old. (PROSE: Iceberg, TV: Twice Upon a Time [+]Steven Moffat, Doctor Who Christmas Special 2017 (BBC One, 2017).)

The Doctor said that she was over 2000 years old whilst talking to the TARDIS. (AUDIO: The Romanov Project [+]Error: Code 2 - no data stored in variables, cache or SMW.) She told her companions that she was thousands of years old, so old she did not even remember her true age anymore. (TV: Fugitive of the Judoon [+]Vinay Patel and Chris Chibnall, Doctor Who series 12 (BBC One, 2020).)

After being captured by the Judoon, (TV: The Timeless Children [+]Chris Chibnall, Doctor Who series 12 (BBC One, 2020).) the Doctor spent "a rough few decades" - with a minimum of 19 years - in a maximum security facility before being broken out by Jack Harkness. (TV: Revolution of the Daleks [+]Chris Chibnall, Doctor Who New Year Special 2021 (BBC One, 2021).)

The Doctor kept a Five Thousand Year Diary during her travels with Yasmin Khan and Dan Lewis. (GAME: Lost in Time)

Fourteenth Doctor[]

After being asked why he never spoke about Melanie Bush or his other companions by Donna Noble, the Fourteenth Doctor dismissively told her that he was a billion-years-old, and would never be able to talk about everyone he ever met as he wouldn't have time to finish. (TV: The Giggle [+]Russell T Davies, Doctor Who 60th Anniversary Specials (BBC One and Disney+, 2023). Timestamp 00:19:00.)

The Valeyard[]

The Valeyard told Bernice Summerfield that he was "thousands of years old". (AUDIO: Every Dark Thought)

Behind the scenes[]

The "900" discrepancy[]

Before the Eleventh Doctor's 200-year farewell tour between TV: The God Complex [+]Toby Whithouse, Doctor Who series 6 (BBC One, 2011). and Closing Time [+]Gareth Roberts, Doctor Who series 6 (BBC One, 2011)., the writers of the 2005 revival of the series explicitly described the Doctor as around 900 years old, despite contrary statements on TV and expanded media. It is one of the few notable contradictions of previously established material in the revival. The discrepancy was finally addressed in the short story Doctor Who and the Time War released in 2020, which explained that in the Last Great Time War the Doctor was aged and de-aged multiple times. Eventually "feeling around one thousand" by the end of the War, he rounded his age down to 900.

The Doctor "has no clue"[]

A simple and self-evident theory is that the Doctor doesn't know how old they are because they have lost count, constantly travelling backward and forward through time making it difficult to measure one's lifespan at all. This theory began as fanon, with the Doctor occasionally admitting to being unsure of his age in spinoff media. (COMIC: Doctor Who and the Time Witch, PROSE: Vampire Science)

This is the theory subscribed to by Doctor Who executive producer and head writer Steven Moffat in an interview with SFX: "The thing I keep banging on about is that he doesn't know what age he is. He's lying. How could he know, unless he's marking it on a wall? He could be 8,000 years old, he could be a million. He has no clue. The calendar will give him no clues."[1] This theory would be voiced in The Day of the Doctor [+]Steven Moffat, 50th Anniversary Specials (BBC One, 2013)., written by Steven Moffat, when the Eleventh Doctor is asked by the War Doctor how old he is now. The Thirteenth Doctor also later admitted to being unsure of her age in Fugitive of the Judoon [+]Vinay Patel and Chris Chibnall, Doctor Who series 12 (BBC One, 2020)..

The Doctor lies[]

Another theory was that the Doctor lied about their age. This is supported in the audio The Lost Resort, when the Fifth Doctor states that a Time Lord will always lie when asked their age.

Other invalid sources[]

The age of the incarnation of the Doctor seen in Doctor Who and Crayola is given as over 1 million years by his arch nemesis Crayola.

An incarnation of the Doctor, portrayed by Fourth Doctor actor Tom Baker, who featured in Introduction to the Night gave his age as 700 years old while referring to himself in the third person.

In The Last Dalek, a video game based on TV: Dalek, the Metaltron's memory files state the Ninth Doctor's age as "unknown".

In a brief in-universe portion of The Weakest Link: Doctor Who Special, Tenth Doctor actor David Tennant gave his age as 925 while introducing himself in-character.

External links[]

Footnotes[]

  1. ↑ Steven Moffat, SFX, May 2010
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