The Valeyard

The Valeyard was the alias most commonly used by a sinister renegade. He was in some sense an emanation or incarnation of the Doctor, although his exact nature relative to the Sixth Doctor was shrouded in mystery, with the Valeyard himself creating multiple fanciful accounts of his own origins. Whatever he was, the Valeyard did not have, or had run out of, regenerations, and was primarily motivated by his desire to steal the Doctor's own regenerations for himself.

Though the Master once explained that the Valeyard's origins lay "somewhere between [the Doctor's] twelfth and final incarnation", (TV: The Ultimate Foe) the Valeyard himself later affirmed that "[he could] not be averted, only postponed", as much as the Doctor would try to avert this potential future. (AUDIO: Every Dark Thought) Though the Doctor getting more regenerations on Trenzalore has left the Valeyard's birth more ambiguous as the Twelfth (TV: The Time of the Doctor),, Thirteenth (TV: Twice Upon a Time) and Fourteenth Doctor's regenerations (TV: The Power of the Doctor ) haven't produced him as a byproduct.

A day to come
The Valeyard began as a voice inside the Doctor's head "waiting to bubble to the surface", which encouraged him to indulge in his darker instincts, such as when the Sixth Doctor gunned down the Cyber-Controller, and when the Second Doctor was converted into an Androgum. (PROSE: The Dark Scrolls of the Valeyard)

After meeting the Valeyard at his trial, (TV: The Mysterious Planet) the Sixth Doctor tried avoiding Melanie Bush, terrified that if he took her on as his companion, as the Valeyard showed he would, he would eventually become the Valeyard. (PROSE: Business Unusual)

The Sixth Doctor found himself in an alternate version of London created by Ashley Chapel's use of the Millennium Codex. He manifested magical powers suitable to the new, unstable universe's laws of physics. Using these powers began to transform him into a variant of the Valeyard. The Doctor's fears of becoming the Valeyard allowed his potential in the Doctor to combine with the Great Kingdom's unique physical properties and the Doctor's ability to regenerate. This temporarily made him the Valeyard. The Doctor's true self was able to re-manifest with the aid of the TARDIS as he forced down the aspect of the Valeyard within himself, the Doctor acknowledging the Valeyard's argument that the ruthless course of action was sometimes necessary but rejecting the idea that he had to enjoy such actions to do it. (PROSE: Millennial Rites)

When the Seventh Doctor slept, he dreamed of his other selves in his mind, and heard the Valeyard threaten that "when the [Doctor's] strength was at its lowest, he would reach out from the recesses of [the Doctor's] subconscious and seize [his body]." (PROSE: Head Games)

When the Eighth Doctor looked into a Tomorrow Window, he saw the Valeyard standing "alone on a sand dune, [his] hair in a ponytail, [and] cloak flapping in the wind". (PROSE: The Tomorrow Windows)

Creation of the High Council
In one account, explained that the Valeyard was an "amalgamation of the darker sides of [the Doctor's] nature, [taken] somewhere between [his] twelfth and final incarnation", (TV: The Ultimate Foe) the Doctor's Dark Design. (PROSE: A History of the Universe)

An account embracing the notion that the Valeyard was an artificial projection of the Doctor's darkness, rather than an incarnation of the Doctor, stated that he had reportedly being brought into being by the High Council, (PROSE: The Eight Doctors) though another account suggested that they played no part in his creation, but were still aware of his identity. (PROSE: A Brief History of Time Lords) As written in the Dark Scrolls of the Valeyard, the High Council of the Time Lords "plucked" the Valeyard from the Doctor's time stream as "a great, daring impossibility from before the end". They offered to give the Valeyard his existence if he prosecuted the trial of the Sixth Doctor, with his reward being the Doctor's remaining regenerations. (PROSE: The Dark Scrolls of the Valeyard)

According to Genesta, the Valeyard was created by the Time Lords using black ops technology, possibly as a weapon. However, Genesta was seemingly replaced by the disguised Valeyard himself at some point and he refused to reveal whether the claims were made by the real Genesta or him or, indeed, Genesta had ever been more than a disguise. (AUDIO: The Brink of Death)

Future Doctor
According to another account, however, what actually said was that the Valeyard was the Doctor's "penultimate reincarnation… somewhere between [their] twelfth and thirteenth regenerations". (PROSE: The Ultimate Foe)

Although the eventual twelfth regeneration of the Doctor's conventionally-understood life cycle did not visibly involve an interim Valeyard, (TV: The End of Time) and the product of this regeneration, the Eleventh Doctor, did not prove to be the last, meaning such a predecessor would not have been the "penultimate" Doctor, (TV: The Time of the Doctor) one account suggested that the Valeyard was always in the Doctor's future, and could not be averted, only postponed. (AUDIO: Every Dark Thought)

The Valeyard's own narrative
According to a tale told by the Valeyard himself, which the Doctor noted could have "a grain of truth [to] it", the Valeyard was created as a Time Tot on a mud planet orbiting Etarho during a period when the thirteenth incarnation of the Doctor was experimenting with ways to break the twelve-regeneration limit imposed on Time Lords by Rassilon. At the young age of twenty, the Valeyard was found wandering the mud swamps of the planet by a group of scavengers, who kindly gave him food to eat and, when they learned what race he belonged to, sent him to Gallifrey. The Time Lords examined the Valeyard's biodata and found that it was an exact match with the Doctor's sample. Knowing that this meant that the Valeyard was a temporal anomaly, they sent him to a Shadow House. In the Shadow House, the Valeyard met a Time Lord who had been damaged due to temporal interventions by his future self and therefore had his regeneration permanently stuck in a paradox. The man told the Valeyard to study the science of regeneration, in order to gain revenge on the Time Lords for what they had done to every member of the Shadow House. (AUDIO: Trial of the Valeyard)

Temporal anomaly
According to yet another account, the Valeyard had "splintered" from the Doctor before his final incarnation as a causal imbalance, meaning he only had one life and could not regenerate. As such, Bernice Summerfield did not consider him to be a true incarnation of the Doctor, saying that he was a twisted little fragment that "just fell off the back of a lorry". (AUDIO: Every Dark Thought)

Rogue Watcher
The Sixth Doctor suggested at the Valeyard's trial that the Valeyard might have been a "rogue Watcher" — an emanation of the Doctor's essence who was naturally created as a product of the Doctor's regeneration from their penultimate into their final incarnation, but refused to rejoin with the "real" Doctor and escaped into the wider universe, trying to attain his reality. (AUDIO: Trial of the Valeyard) In another universe, Vansell and a Time Lord President were certain that the Valeyard was the first known Watcher to be thinking, self-aware and independent. They wanted to study him while simultaneously using him as a an agent. (AUDIO: He Jests at Scars...)

Elysian field
One account described the Elysian field, a forbidden Time Lord technique which could allow a Time Lord injured beyond ordinary regeneration to survive in some form. The Time Lord would use their mental powers to burn their entire body, using the energy to fuel their resurrection. As they did so, they would have the opportunity to cast out whatever parts of their essence they wished, meaning the result could have some specific qualities of the original "edited out". The product of an Elysian field resurrection was also "unbound" from the timeline of the original Time Lord: they could freely go back in time and harm their younger self, without cancelling out their own existence.

After used an Elysian field to escape her death at the hands of, the resulting entity, , compared herself to the Valeyard. (AUDIO: The Lumiat)

First meeting with the Doctor
On behalf of the corrupt High Council, seeking to cover up the Ravolox affair that the Sixth Doctor had accidentally uncovered, the Valeyard acted as the prosecutor in the Doctor's trial in exchange for his seven remaining regenerations. (TV: The Ultimate Foe) Keeping his end of the bargain, the Valeyard presented extracts from the Matrix depicting recent events in the Doctor's life as evidence of the Doctor violating the Time Lords' non-interference policy. (TV: The Mysterious Planet, Mindwarp)

Unbeknownst to the Time Lord jury present at the trial, the Valeyard had tampered with the Matrix extracts to show the Doctor in the worst possible light and steer the trial to a guilty verdict. He created the impression of the Doctor abandoning his companion, Peri Brown, to save himself, (TV: Mindwarp) and also added the charge of the genocide of the Vervoids, despite their artificial nature and the act being from the Doctor's future. (TV: Terror of the Vervoids)

Attempting to secure a guilty verdict, the Valeyard was somehow able to force an alternate timeline where the Doctor would be judged guilty and arranged to oversee his execution, intending for this timeline to become real once the Doctor had been shot. However, the Doctor was saved from execution when his eighth incarnation arrived to save him, the temporal stasis created when two incarnations met allowing the Sixth Doctor to retreat into the Eighth's TARDIS. Although the timeline that created him was erased after his departure, and the Sixth Doctor travelling with the Eighth vanished a short while later, he existed long enough to assist the Eighth Doctor in setting up an inquiry into the trial using their previous role as President. (PROSE: The Eight Doctors)

Back on the station, the Master eventually stepped in after taking delight in seeing the Doctor's plight, sending Sabalom Glitz and Melanie Bush to act as witnesses for the Doctor's version of events, and revealed the Valeyard's origin and motives. The Valeyard escaped into the Matrix via the Seventh Door, which he opened with a copy of the Key of Rassilon. He was pursued and finally defeated by the Sixth Doctor when he tried to use a particle disseminator to destroy the court at the Doctor's trial. The Doctor programmed the disseminator to feed back into the Matrix and escaped before the resulting blast apparently destroyed the Valeyard. The Inquisitor dismissed the trial. However, as the Sixth Doctor and Mel departed, the Valeyard was secretly still present – having somehow escaped under the guise of the Keeper of the Matrix. (TV: The Ultimate Foe) Back on Gallifrey, the Eighth Doctor's Commission of Inquiry into his past self's trial resulted in the dismissal of the renegade High Council responsible, as well as the temporary restoration of Borusa to guide Gallifrey through the immediate turmoil caused by the exposure of their crimes. (PROSE: The Eight Doctors)

On trial
The Valeyard was found by the Time Lords on the moon of Etarho and was captured and ordered to reveal the secret research into regeneration the thirteenth incarnation of the Doctor had allegedly performed there. The Valeyard refused, and as a result, he was placed on trial with a faked charge of having hacked into the Matrix. He asked for the Sixth Doctor to be his defence. The Valeyard told the Doctor and Inquisitor Darkel of his supposed origins, during which he voiced heresy against the limit Rassilon had imposed on regeneration, suggesting it was only a measure of control from Rassilon's side and was possible to break. As a result, he was judged to immediate termination, but he managed to fake his execution by using a hidden Matrix door placed under the dock, and he escaped through it onto the surface of Etarho's moon.

On the moon of Etarho, the Valeyard impersonated the Thirteenth Doctor and tricked the Doctor into taking a bomb from him. The Doctor discovered his ruse, and the Valeyard escaped again by entering another Matrix door. The Doctor assumed that the Valeyard would likely try again at some point to exact revenge on both himself and Darkel, and warned Darkel that it was very likely the Valeyard had received help from someone powerful on the Time Lord council, pointing out that it would have been very difficult for him to sneak a Matrix door into the courtroom all by himself. (AUDIO: Trial of the Valeyard)

Further schemes
The Valeyard subsequently devised the identity of a man called Zimmerman to send assassins after the Sixth Doctor and sell various Time Lord secrets. However, both plans failed when the Doctor's investigation into the assassins' activities revealed Zimmerman's actions, though not his identity, with his link to the Matrix ensuring that the Time Lords learned about them as well. The Doctor later managed to get the assassins off his trail by using a stolen temporal circuit to put himself in temporal stasis, frozen between heartbeats and thus legally dead, resulting in the assassins being forced to accept that they had technically killed him even if he was alive later. (PROSE: Mission: Impractical)

The Valeyard was pursued by the Caragot, who wanted to capture and integrate him in order to gain his knowledge and intelligence. In a TARDIS that would not work properly for him due to him not being a regular Time Lord, he travelled to Ogoychao in search of an elixir that would not only grant him the ability to regenerate but to ensure that the Doctor's feelings of responsibility for the universe would not resurface in any future incarnation. He called himself "the Doctor" and manipulated Bernice Summerfield into helping him by claiming that the Caragots were conquerors and that they were looking for a way to defeat them, but she saw him kill Chorus and, after trying to save him, he remained in the caves with his spilt elixir whilst the Caragot exploded. (AUDIO: Every Dark Thought)

Master plan
After his last encounter with the Doctor, the Valeyard was left in a weakened state, not even able to maintain his normal appearance. He travelled to the Parallel Sect's Dimensional Nexus to use its properties to restore himself. This plan was brought to a halt when arrived, possessing an ordinary human because of the dangers the dimensional nexus posed to his person, desiring to use the Nexus to be able to take over any dimension he wished. His interference accidentally began to cause different universes to intersect at the Nexus, which would eventually cause an infinite number of dimensions to appear there.

Fortunately for the Valeyard, the Sixth Doctor and Constance Clarke arrived. Masquerading as a man named Tim Hope, the Valeyard waited until the Doctor figured out what the Master was up to, and planted the dimensional stabiliser, the item that the Doctor needed to fix things, on Constance. After that, he confronted the Master and threatened him, forcing him to leave and never return, and to also leave the Doctor alone, as the Valeyard had a plan to deal with him. The Master refused at first, but the Valeyard reached out to the Master in his TARDIS to ensure the Master heeded his threat. With the Dimensional Nexus restored to normal, the Valeyard was mostly restored, having retaken his normal appearance. (AUDIO: The End of the Line)

For the next step, the Valeyard journeyed to the moon of Plestinious, having learned of the existence of a native species called the Nathemus, a cluster of intelligent microscopic creatures with strong psychic abilities that fed on thoughts. Knowing that the Nathemus's native habitat would be destroyed by the authorities of Plestinious, the Valeyard saved them from their fate by extracting them into a container filled with volcanic gas from Plestinious, the only environment they could survive in. Thankful for being saved from extinction, the Nathemus pledged their loyalty to the Valeyard. He then revealed his plans to them; he would use their psychic abilities to take control of the Matrix, allowing himself to overwrite every Time Lord whoever had existed and retroactively replace them with copies of himself, to a point where he would eventually be able to replace even Rassilon, and thereby have free reign to shape Time Lord society in any way he pleased. In exchange for the Nathemus' help, he would give them a unique and colourful mind to feed on: that of the Sixth Doctor. (AUDIO: The Brink of Death)

The Valeyard then travelled to a planet in the 31st century. There, he set himself up as a porter, assisting Dr Paignton as she used her Psychic Extractor to remove the feral urges of the werewolves of said planet. Once the Sixth Doctor and Charlotte Pollard arrived and interfered, the Valeyard was able to steal the Extractor, using his knowledge of Charley's past with the Eighth Doctor to trick her into helping him distract the Doctor. He then went to the Doctor's TARDIS and implanted the Nathemus into the symbiotic nuclei of the TARDIS, where they would stay and feed on the Sixth Doctor's mind until they were able to access the Matrix. (AUDIO: The Red House) In the process of doing so, the Valeyard was confronted by a future Sixth Doctor, who demanded to know what he was trying to accomplish. The Valeyard believed that the Doctor's visit was a sign that his plan would succeed in the future, and pleased by this, he allowed the Doctor to have an audience with the Nathemus to have them explain the plan to him. The Doctor was horrified by what the Nathemus told him but was powerless to stop the Valeyard as he was back dragged into the Matrix which he had previously escaped from. (AUDIO: The Brink of Death)

The Valeyard travelled to Victorian London and posed as a man named Timothy Yardvale, convincing Henry Gordon Jago to rent him the New Regency Theatre, by claiming he wanted to stage a play. He then lured actors to the theatre and had them help him act out the regenerations of the first five Doctors, with him playing the role of the past Doctors. He would then use the Psychic Extractor on the actors, absorbing their negative emotions and killing them. He would then place the bodies in easy-to-find locations as a message to the Sixth Doctor, who eventually arrived with Flip Jackson. Having abducted Flip to act as Zoe Heriot in a twisted version of the Second Doctor's regeneration, he used the Extractor on the Doctor, goading him into feeling more negative emotions, which continued the Valeyard's restoration. Flip managed to distract the Doctor, bringing an end to the Valeyard's plan. But what he managed to get from the actors and the Doctor was enough to complete his restoration. All he had to do was wait for the Nathemus to complete their work. (AUDIO: Stage Fright)

Once the Nathemus finally got access, the Valeyard was able to take over the Sixth Doctor's life. In this position, he made arrangements for having the Nathemus continue to influence the Matrix and managed to replace at least two other Time Lords with himself. However, an echo of the Doctor remained in the Matrix and managed to foil the Valeyard's plan by telling his past self through the telepathic circuits to fly into beams of radiation from Lakertya, thus forcing him to regenerate into the Seventh Doctor, and killing the Nathemus before they could completely link with him. This left the Valeyard trapped in the Matrix with the echo of the Doctor. The Valeyard angrily protested that the Doctor had killed them both and robbed himself of a future, but the echo of the Sixth Doctor declared he would rather die than have a future as the Valeyard and added he would do so happily, knowing the last words the Valeyard would ever hear would be his. With his regeneration into the Seventh Doctor, however, the timelines shifted, leading the echo of the Sixth Doctor to quietly fade away as he was from a timeline that now no longer existed. The Valeyard, meanwhile, remained stuck in the Matrix, having once again been reduced to a weakened form. (AUDIO: The Brink of Death)

Return
The Valeyard later tangled with the Doctor in his seventh incarnation, revealing his mastery of the Dark Matrix, a counterpart of the original. He assumed the identity of Jack the Ripper and used the Ripper murders to "feed" the Matrix. He tried to use its power to give himself a true body, unconcerned with the dangers his actions posed to history. While he committed the Ripper murders, he used the Dark Matrix to reach into his past to corrupt the Doctor's other selves to do his work, such as driving the Doctor to destroy other Time Lords as he left Gallifrey in his first incarnation, his fourth incarnation into destroying the Daleks at their beginning and his fifth incarnation into drinking the bat's milk himself while Peri died in his place. These corrupted incarnations became wraiths in the Valeyard's TARDIS, resembling cloaked, twisted versions of themselves, which he could subsequently use to animate golems to act as his agents.

After the Seventh Doctor was attacked by one of the Valeyard's golems, he attempted to leave Ace with the First Doctor for safety, only to arrive in the alternate 1963 that would result from the Valeyard's presence in London. He learned the full details of the new timeline from that world's versions of Ian Chesterton and Barbara Wright. He travelled back to 1888 to investigate the Ripper murders after identifying them as the divergent point with Barbara's help but nearly fell under the Valeyard's influence before he sealed his conscious mind in the TARDIS' telepathic circuits. After wandering London as an amnesic cardsharp by the name "Johnny", the Doctor was reunited with the circuits in time to save Ace from being the Ripper's sixth victim.

Tracking the Valeyard to the church where he had established his base, the Doctor confronted his enemy - who stated that he now called himself "the Ripper" as he found the name more evocative - while the Ripper summoned the wraiths of the other twelve Doctors to confront the Seventh. Fleeing deeper into the tomb that was the Valeyard's TARDIS, the Doctor provoked the Matrix into rebellion against the Valeyard's control, informing it that it was still as trapped now as it had been on Gallifrey, resulting in it lashing out from its prison in the Valeyard's TARDIS. He fought the Ripper on the top the church, but the destruction of the Valeyard's TARDIS and the subsequent release of energy caused by the 'rebellion' of the Dark Matrix seemingly killed the Valeyard and restored history to normal. (PROSE: Matrix)

The Time War
The Valeyard was reconstituted from the Eighth Doctor when he used a transmat to leave Thellian. (AUDIO: Fugitive in Time, The War Valeyard) He was set to work by the Sixth Tamasan to fight in the Last Great Time War. He won many battles for the Time Lords by not hesitating to sacrifice planets when necessary, as the Doctor never would.

Eventually, the Time Lords learned of a weapon on the planet Grahv, that would allow the Daleks to erase the Time Lords from existence so completely, that the Daleks would be the only ones to remember the Time Lords ever existed. The Valeyard was sent to Grahv to use the weapon on the Daleks. He was able to successfully use it, but with the cost of damaging his own memory, along with the deaths of the native Grahvians. The Time Lords, upon discovering this, placed the planet in a time lock, trapping the Valeyard there. With his memory damaged, and the weapon's true nature of being a memory weapon providing illusions of the Grahvians and the Daleks still being alive, the Valeyard repeated his mission over and over again for two centuries. The continuous mental resets caused by the loop damaged the Valeyard's memory of his own identity, leading to him eventually coming to define himself as the Doctor.

A psychic vision of this reached the Eighth Doctor, who, after learning what the Time Lords had done, stole Tamasan's TARDIS to break through the time lock. The Doctor was able to figure out what had happened, including that the Dalek Time Strategist had been there, and had escaped through a rift. The Valeyard refused to follow the Doctor and Bliss through the rift, as he knew if he left Grahv, his memories would reassert themselves and he would go back to being the Valeyard. By staying on Grahv, he could continue being the Doctor, while the continous resets would allow him to keep the Grahvians alive in some form. With the Doctor's departure, the Valeyard remained trapped there, fighting against the Daleks as the Doctor. (AUDIO: The War Valeyard) Unfortunately for the Time Lords, (AUDIO: Palindrome, Restoration of the Daleks) the Valeyard's effort to destroy the Daleks with the Grahv (AUDIO: The War Valeyard) ultimately proved to be useless, as the Dalek Time Strategist, now allied with a recreation of Davros, successfully restored the Dalek race to the universe, allowing the Time War to continue. (AUDIO: Palindrome, Restoration of the Daleks)

Legacy
The Carrionites knew Valeyard as a name for the Doctor and used it to taunt the Sixth Doctor. Reverend Douglas Bell would advise the Doctor to take heed of their prediction that hatred would consume him, though the Doctor insisted that it was still only a possibility and not set in stone. (AUDIO: The Carrionite Curse)

For a time, it was believed that the corrupted memory of the Sixth Doctor would be used as the template for the Valeyard's final manifestation as the Seventh Doctor began to associate him with the Valeyard, prompting the memories of the other five Doctors to seal him away in their mind. (PROSE: The Room With No Doors) The Seventh Doctor would often have nightmares about the Valeyard and would avoid regeneration when he could, lest a regeneration crisis serve to free the Valeyard from his mind. (PROSE: Head Games) However, when the Seventh Doctor nearly died and woke up in his own grave, he accepted that he was the Doctor in all his bodies and nobody deserved to be locked away forever, allowing him to forgive his past self and remove the guilt that would have led to the Sixth Doctor's memory becoming the Valeyard. (PROSE: The Room With No Doors)

The Tenth Doctor still considered the Valeyard to be one of his future incarnations and wondered if the Twelfth Doctor was secretly him upon meeting him as he had scanned the Eleventh Doctor and confirmed him as his final incarnation. The Twelfth Doctor rebuked by asking if he "looked like he was out of panto". (COMIC: Four Doctors)

On Trenzalore, the Great Intelligence claimed that the Valeyard would be one of the future aliases of the Doctor "before the end". (TV: The Name of the Doctor)

considered the Valeyard to be "magnificent", while the Lumiat explained that she was Missy's Valeyard, only the opposite, being all the good and kindness within her. (AUDIO: The Lumiat)

As recorded by the Testimony, the "Shadow of the Valeyard" was a name for the Doctor. (TV: Twice Upon a Time)

False Valeyards
When the Eighth Doctor and Bliss initially arrived on Grahv, they were confronted by a replication of the Valeyard based on the Doctor's memories of the Valeyard he had confronted in his sixth incarnation, due to a side-effect of the memory weapon used to destroy the Daleks. This Valeyard was killed by the 'true' Valeyard before he could do more than issue threats of killing the Doctor and Bliss. (AUDIO: The War Valeyard)

Es'Cartrss of the Tactire, while assuming the form of the meta-crisis Doctor to steal the Tenth Doctor's memories from within the TARDIS matrix, suggested to the Doctor that he was, in fact, the Valeyard. The Doctor dismissed this suggestion, leading to the revelation of Es'Cartrss's identity. The Tenth Doctor eventually used Es'Cartrss's decision to impersonate the Valeyard against him. Es'Cartrss had assumed a Time Lord body, which no longer existed beyond the Doctor himself. The Doctor reminded the Matrix of this knowledge and purged the system of the erroneous data creating an additional Time Lord, which was Es'Cartrss itself. This nearly killed the parasite and allowed the Doctor to reclaim his mind. The Doctor then booted the incapacitated creature out of his TARDIS. (COMIC: The Forgotten)

Personality
The Valeyard was similar to several of the Doctor's incarnations, cunning and verbal, with a knack for manipulation. He had a bit of a temper, and was prone to outbursts, but generally calm and collected, also traits of several incarnations of the Doctor. However, his actions were constantly defined by his egotism. The Valeyard would risk or sacrifice anything to ensure his own existence, even break the Laws of Time and kill his own past self and try to control the Dark Matrix despite the dangers its presence would pose to established history. (TV: The Mysterious Planet, The Ultimate Foe, PROSE: Matrix)

He described himself as "the summation of the Doctor's daring without his hesitation", and as "ambition without regret", overall thinking he could "do it all so much better than [the Doctor]". (PROSE: The Dark Scrolls of the Valeyard)

The Valeyard seemed to possess memories of the incarnations of the Doctor that fell before him. He predicted to the Sixth Doctor that he had "no idea" what was approaching in his life. He offered to tell him of his next incarnation, whom he claimed was filled with "plots and schemes," all to "win a game that was never his to win." He described the Doctor's eighth incarnation as one that "won't ever be able to shake the shadow of death," and predicted that "there will be deaths" in the Doctor's future. (AUDIO: Trial of the Valeyard) He also expressed knowledge of the futures of the Doctor's companions Charley Pollard and Flip Jackson. (AUDIO: The Red House, Stage Fright)

When he was initially recruited to fight in the Time War, the Valeyard was described by Tamesan as the ideal soldier for the Time Lords, possessing all of the Doctor's skill and experience without his morality, being willing to do whatever it took to stop the Daleks, her description implying that he was responsible for the destruction of various planets in the name of Time Lord victory (or at least Dalek defeat). After he lost his memory due to his actions on Grahv, the Valeyard assumed a more Doctor-esque attitude, attempting to protect the innocents caught up in the current conflict. However, even in this state, he was willing to resort to more extreme measures than other Doctors might contemplate, such as planting land mines specifically configured to go off if a Dalek passed over them. (AUDIO: The War Valeyard)

Appearance
The Valeyard appeared as a middle-aged man, with light grey eyes and short black hair. In full courtly dress, the Valeyard wore long black robes with a stiff black collar edged in white and a black skullcap. After the trial of the Doctor, the Valeyard at least temporarily became the Keeper of the Matrix; this time he wore an orange version of his previous outfit with a stiff collar. (TV: Mindwarp, The Ultimate Foe)

Inside the Matrix, he disguised himself as Mr Popplewick, a slightly overweight man with curly blond hair. In this capacity, he wore human clothes typical of the 19th/early 20th century which included a white shirt and a vest under a large blue jacket. He also wore a bow tie and a pair of glasses. (TV: The Ultimate Foe)

While acting as the Ripper in London in 1888, he was typically shown wearing a long dark robe that concealed most of his features. (PROSE: Matrix)

After the Valeyard was "reconstructed" by a genetic resequencing device after the Eighth Doctor passed through a transmat while holding the equipment, he appeared as a physically older version of himself wearing the Eighth Doctor's current clothing. The Doctor explained that his clothing had been copied because clothing was simple whereas there were more "options" with the Doctor's genetic structure, while Tamasan explained that the Valeyard's apparent ageing was because of the difficult circumstances of his recreation, noting that it had taken some work for the Time Lords to stabilise him after they found him. (AUDIO: The War Valeyard)

Possible origins

 * Some of the background for the Valeyard was lost due to creative differences between John Nathan-Turner, Doctor Who's producer, and script editor Eric Saward. An earlier draft of The Ultimate Foe made it clear that the Doctor would definitely, at some stage, turn into the Valeyard, desperate to extend his life after his remaining regenerations had run out — a situation not dissimilar to the one earlier faced by . Nathan-Turner did not favour the dark nature of these and other developments in the script and felt this plot point would allow cancellation of the series for bookending the Doctor's future destiny. This fear was justified by the then-recent hiatus placed on the show by BBC One controller Michael Grade. Pip and Jane Baker ended up patching up the continuity — without reference to the scripts, for legal reasons.
 * In the novelisation of The Ultimate Foe, the Master states, "The Valeyard, Doctor, is your penultimate reincarnation... Somewhere between your twelfth and thirteenth regeneration."
 * The Time Traveller's Companion, a supplement for the Doctor Who – Adventures in Time and Space: The Roleplaying Game, implies that the Valeyard is a rogue Watcher, similar to the one produced in Logopolis, generated during the regeneration of the twelfth into the thirteenth incarnation. This Watcher, presumed to possess all the most negative traits of the Doctor's darker nature, refused to rejoin with the Time Lord and escaped into the wider universe to eventually put the Doctor on trial.
 * The Sixth Doctor suggested this theory during the Valeyard's trial but was answered that the Valeyard did not look like a Watcher, though the theory was not confirmed nor definitely denied. (AUDIO: Trial of the Valeyard)

Other matters

 * Contrary to the in-universe definition, "Valeyard" is not a genuine legal title meaning "learned court prosecutor". The word was entirely made-up by writer Robert Holmes. The title does bear some similarity to the French word "vieillard", meaning "old man".
 * The Valeyard appeared in the unauthorised fan novel charity publication Time's Champion begun by Craig Hinton and completed by Chris McKeon.
 * The Doctor Who Unbound audio story He Jests at Scars... portrayed a version of the Valeyard from an alternate timeline in which he succeeded in killing the Doctor in the Matrix and pursued his schemes to alter history to his own designs, ultimately damaging the timeline beyond repair.
 * The character of the Dream Lord shared aspects of the Valeyard, as he also was created from the dark side of the Doctor, in a dream induced by psychic pollen. (TV: Amy's Choice)
 * The Valeyard reappeared, once more as the prosecutor to Darkel's inquisitor, in the parodical short story Not Guilty, printed in DWM 542 in 2019. Due to the satirical nature of this story, it is not considered by this Wiki to be a valid source.
 * Writers of the Virgin New Adventures were forbidden from using the Valeyard because "he's a continuity nightmare, plus he's a rather dull villain".

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