The Doctor's final incarnation

By some accounts, the Doctor eventually reached their final incarnation and then subsequently met their death.
== Knowledge of the final Doctor ==
When Ruath used a Time Scoop to view the Doctor's time stream, she advanced the viewer to the Doctor's final face. After remarking "So that's what you become! Well, that's no good to me," she shifted the Time Scoop to the Fifth Doctor, whom she thought would be easier to manipulate. (PROSE: )
The Tremas Master told the Sixth Doctor that the Valeyard was "an amalgamation of the darker sides of your nature, somewhere between your twelfth and final incarnation". (TV: ) This phrasing would be repeated by the Seventh Doctor (PROSE: ) and the historical text A Brief History of Time Lords. (PROSE: )
Eventually, in an incident even more "strange" than the many "adventures and experiences" leading up to it, Dr Who arrived at the point in Infinity-Eternity where he found the "final goal" for which he had always been searching. (PROSE: )
Some accounts doubted that there was ever such a thing as a final death of the Doctor, and consequently a final incarnation. Shortly before the Tenth Doctor's regeneration, Ood Sigma told him that although "[his] song [was] ending", "the story never ends". (TV: )
== Identities of the final Doctor ==
=== The Doctor's thirteenth incarnation ===
By various accounts, the Doctor's final incarnation was the thirteenth of their original regeneration cycle. 
By one account, the Tremas Master said that the Valeyard came from between the Doctor's twelfth and thirteenth incarnations. (PROSE: )
In a story related by the Valeyard, the thirteenth and final incarnation of the Doctor supposedly composed a set of scrolls which detailed his work to bypass the limit of twelve regenerations and that the Valeyard himself was created as a Time Tot on a mud planet orbiting Etarho as a result of the Doctor's experiments. The Valeyard's claim, however, was doubted by the Sixth Doctor. Indeed, the Doctor found what appeared to be his final incarnation on Etarho to have been the Valeyard masquerading as him. (AUDIO: )
When Ace entered the Doctor's mind, she saw that it had space for thirteen total selves, with the incarnations beyond the Seventh Doctor still being Watchers yet to be molded into distinct incarnations, including the final thirteenth incarnation. (PROSE: )
=== The Relic ===
By one account, a Doctor lying in the Eighth Doctor's future appeared to have died in Dronid, and his body became the Relic, becoming the subject of an auction on Earth in the context of the War in Heaven. After the various powers who wanted to acquire the still-potent cadaver were dispatched, it fell to the pre-War Eighth Doctor to dispose of his future self's body, which he destroyed. (PROSE: ) However, the War in Heaven would later "end" in such a way that it seemed never to have happened at all, resulting in a post-War universe where an amnesiac Eighth Doctor who had never gone on to fight in the War properly survived, never becoming the Relic. (PROSE: , )
=== The Eleventh Doctor ===
By the time he participated in the Siege of Trenzalore, the Eleventh Doctor believed himself to be the final incarnation of the Doctor, as the Tenth Doctor's siphoned regeneration and the War Doctor had counted as two of his twelve regenerations.
When he explained this to Clara Oswald, she acknowledged it as the currently-established set of events, but begged for him to "change the future". The Doctor told her that he was unable to rewrite the timeline on that scale, but that the Time Lords would have possessed that power at their height, prompting Clara to subsequently plead with the Time Lords through the crack in time connecting Trenzalore to Gallifrey. Accepting her request that they "help him change the future", they sent the Doctor a new regeneration cycle allowing him to enact a "regeneration #13" which transformed him into the Twelfth Doctor, averting his originally-fated point of death. (TV: )
=== Ginger Doctor ===
According to one account, a ginger incarnation of the Doctor (PROSE: ) "believed himself to be the last". Daughter of Mine mentioned him to the Thirteenth Doctor, who did not recognise this incarnation. (AUDIO: )
== Behind the scenes ==
* Paul Cornell, who mentioned the Doctor's final incarnation in several of his stories, wrote a depiction of the Doctor's final life in his short story The Last Doctor.https://web.archive.org/web/20111225013519/http://www.paulcornell.com/2009/12/12-blogs-of-christmas-one-doctor-who_9773.html
* Craig Hinton's Doctor Who lore indicated that the Doctor's thirteenth and final incarnation would survive after death as the Red Guardian.
* The unproduced comic story The Last Regeneration would have featured the final incarnation of the Doctor being ginger.
* Steven Moffat intended the character of Doctor Moon in Silence in the Library/Forest of the Dead to be the uploaded mind of the Forty-Fifth Doctor who had died in battle. (REF: )
== Footnotes ==
Category:Incarnations of the Doctor