List of causes of regeneration

The causes of regeneration, especially amongst Time Lords, were many and varied.

They ran the gamut from simple desire to change to sentencing for convictions, to life-threatening maladies, to blunt-force trauma. While all of these might have been cause for alarm in humans, Time Lords sometimes expressed much less concern. As the Twelfth Doctor once told Clara, "Death [was] Time Lord for man-flu". (TV: Hell Bent)

The following are the known causes of regeneration of specific Time Lords or other regenerating idividuals.

The Collective

 * In his eighth incarnation, when he called himself the Eight, he was badly injured while helping the Eighth Doctor and River Song resist a telepathic attack from the Clocksmith. He went into the Doctor's TARDIS and regenerated. (AUDIO: The Doomsday Chronometer)
 * The Eleven was killed when he attempted to propose an alliance between himself and three incarnations of the Master after the failure of his prior alliance with the Ravenous; denouncing the Eleven as a twisted lunatic, the three Masters shot him and expelled him from their TARDIS with only a vortex manipulator. (AUDIO: Day of the Master)

Iris Wildthyme

 * Iris Wildthyme regenerated after a lengthy period of illness following the consumption of a live Kaled mutant. (PROSE: The Scarlet Empress)

The War Chief

 * The War Chief underwent a faulty regeneration after being shot by War Lords; lack of medical care and the scale of the damage sustained resulted in his new form appearing like two bodies fused together, the damage preventing him from ever regenerating again. (PROSE: Timewyrn: Exodus)

Ruath

 * Ruath drained every drop of her blood from her body to restore Vampire Lord Yarven. Yarven subsequently turned her new incarnation into a vampire. (PROSE: Goth Opera)

Ophiuchus

 * Dying from an unknown cause, Ophiuchus was saved by the Fifth Doctor who gave him a "little push" having been convinced by Nyssa and Tegan and regenerated. (COMIC: Ophiuchus)

Innocet

 * Innocet was killed by a Quences-possessed Badger to protect the Doctor. (PROSE: Lungbarrow)

Verne

 * After voting for the side opposing those who had sponsored his rise to power, Verne was caught up in a fight and was so badly injured that he was forced to regenerate into an incarnation that had a plain face and a laughably high voice.
 * Upset at this, he immediately forced himself to regenerate again, this time into a deformed old man.
 * A third regeneration resulted in an amorphous blob.
 * A fourth resulted in a monstrosity which was ordered to be destroyed by the Lord President. (PROSE: The Twin Dilemma)

Glospin

 * Glospin force-regenerated himself into the double of the First Doctor after acquiring a genetic sample to influence the appearance of his next incarnation. (PROSE: Lungbarrow)
 * Having killed Quences while disguised as the Doctor, Glospin regenerated again to conceal his role in the murder. (PROSE: Lungbarrow)

I.M. Foreman

 * As a priest, I.M. Foreman had been given the gift of regenerations. This made twelve different individuals, who were created by his body absorbing the DNA around him; all regenerations were caused by the Third Doctor sending Foreman's first twelve bodies back to Gallifrey's past so that they fell from a great height, each regenerating into their next body, the trauma of the regeneration causing each incarnation to lose their memories. (PROSE: Interference - Book One, Interference - Book Two)

Cavis

 * Celestial Intervention Agency agent Cavis nearly regenerated after she was decapitated by Queen Regent Mab, but Mab also stabbed her in both hearts to ensure that she remained dead. (PROSE: The Shadows of Avalon)

Epsilon Delta

 * A run-in with some Sontarans triggered Epsilon Delta's first regeneration. (PROSE: The Dimension Riders)

Gandar

 * Celestial Intervention Agency agent Gandar was stabbed in the heart by Margwyn but regenerated as Margwyn missed his second heart. (PROSE: The Shadows of Avalon)
 * Gandar regenerated again shortly after his previous regeneration when he received a fatal sword wound; his new incarnation resembled a hybrid of human and Silurian and was far more peaceful than his previous violent selves. (PROSE: The Shadows of Avalon)

Louis

 * Louis's first regeneration was triggered by a staser-gun blast inflicted by Rigan. (AUDIO: Unregenerate!)

Elbon

 * Surgeon-Master Elbon was shot by a servitor that Irving Braxiatel placed in the TARDIS that Romana II used whilst trying to bring a pair of Pig-rats back to Gallifrey. His next incarnation was hijacked by the Dogma Virus. (AUDIO: Panacea)

River Song

 * As a little girl, Melody Pond, later known as River Song, regenerated on the streets of New York City in 1970 due to a terminal illness. She ended up as a toddler upon her regeneration. (TV: Day of the Moon, Let's Kill Hitler)
 * In her second incarnation, known to Amy Pond and Rory Williams as Mels, Melody regenerated in Hitler's private study in 1938 after the Führer accidentally shot her while aiming for the Teselecta. She later used up all of her remaining regenerations to heal the Eleventh Doctor from a poison with which she had infected him. (TV: Let's Kill Hitler)

Karlax

 * Karlax was forced to regenerate having been exposed to the space vacuum after Dalek stealth ships destroyed his Battle TARDIS during the Last Great Time War. (PROSE: Engines of War)

Volstrom

 * In quick succession, Volstrom was forced to regenerate at least four times having been repeatedly shot by the Eleven using a staser modified to allow for regeneration as a means of torture, changing from male to female form then back to male then female again. (AUDIO: Songs of Love, The Side of the Angels)

Ollistra

 * When the Eleven came to New York to confront Ollistra and the Eighth Doctor, she was pushed from a building by him, which triggered a regeneration. (AUDIO: The Side of the Angels)

The General

 * After tricking the Time Lords into saving Clara Oswald with an extraction chamber, the Twelfth Doctor tried to flee with Clara and armed himself with the General's sidearm. As the gun had no stun setting, the Doctor confirmed that the General had not yet completed his regeneration cycle before shooting him. The shot resulted in the General's immediate regeneration. To the General's relief, the new incarnation was once more a woman. (TV: Hell Bent)

Thessalia

 * Chatelaine Thessalia forced herself to regenerate after the Imperator's trial by putting a gun in her mouth and committing suicide. (PROSE: The Book of the War, Newtons Sleep)
 * She regenerated again, growing younger and taller, sometime before recruiting Larissa to the Order of the Weal. Larissa speculated this occurred during the worldquake or the goblin infestation. (PROSE: Newtons Sleep)

Larissa

 * Larissa regenerated after being shot in the abdomen by Doctor Bendo. (PROSE: Newtons Sleep)

Pavo

 * Constable Pavo was shot by, who used a perception-altering ring to pose as Pavo while Pavo regenerated into a female incarnation with the aid of the Second Doctor and Jamie McCrimmon. (AUDIO: The Black Hole)

Trave

 * Trave was shot in the line of duty when posted to Outpost Delta. She regenerated into a male form. (AUDIO: Enemy Lines)

Kallix

 * Kallix regenerated after the Daleks attacked the Neverwhen. (AUDIO: The Neverwhen)

Albrecht

 * High Tutor Albrecht regenerated as a result of an experiment by Theta Sigma involving a perigosto stick and a temporal feedback loop. (PROSE: The Time Lord Letters)

Proto-Time Lords

 * Brooke regenerated for the first time after being shot by River Song. (AUDIO: My Dinner with Andrew)
 * Lake's first regeneration was induced after he was mortally wounded by an unstable fuel cell. Seeking to determine the number of times he could do so, he tested the ability of his fellow Proto-Time Lords by inflicting fatal injuries on them or convincing them to commit suicide. Ironically, Lake's last victim was his third and final incarnation, a girl who became known as Lily after losing her memory of her prior lives. Having witnessed Lake regenerate into Lily after mortally wounding him in anger for murdering her, River Song was forced to send Lily back in time so she would meet her fate. (AUDIO: The Lady in the Lake)
 * Wadi's regenerations were all expended through fatal injuries inflicted by Lake. (AUDIO: The Lady in the Lake)
 * As part of his religious cult, Lake convinced Stream, Beck and Creek, to die multiple times on Terminus Prime so he could covertly study regeneration and find out how long he was able to live. (AUDIO: The Lady in the Lake)
 * Rindle first regenerated after being mortally wounded by a wild beast. He regenerated again, this time into a female form, by Lake when he mistook him for an imposter. Catching up with her, Lake forced to regenerate again, now becoming an older man, before expending Rindle's remaining regenerations to power his ship. (AUDIO: The Lady in the Lake)
 * Deceived by Lake into believing that regeneration was a constant rebirth, Tarn went to Terminus Prime to commit suicide so he could continually be born again. By the time he met River, he had already died eight times. He was killed again by Kevin and then again by Dave, regenerating at least ten times. (AUDIO: The Lady in the Lake)

Causas de regeneraciones