{Wikipedia}
Since the beginning of the British science fiction television series Doctor Who in 1963, many actors have played the title character of The Doctor on television and in various BBC-licensed spin-offs on television, stage, radio, film, audio plays and webcasts. The character's ability to periodically regenerate his appearance and personality has facilitated the ability of new actors to take over the role – in both official and unofficial productions – while in most cases maintaining continuity with the television series.
This list does not include Doctors who have appeared in fan films or amateur stage shows and audios. Nor does it include rare occasions where a companion or other character has impersonated the Doctor (such as Mawdryn in the story arc Mawdryn Undead or Clara Oswald in the TV episode "Death in Heaven").
The incumbent is Peter Capaldi, who succeeded Matt Smith in the role at the conclusion of the 2013 Christmas special, "The Time of the Doctor".[1][2]
