The Doctor (Doctor Who) footage. Tom Baker did reappear, but as "the Curator", an ambiguously different character who he was not credited for playing. A voice actor, John Guilor, recorded a line of audio impersonating the First Doctor, for which he was credited as "Voice Over Artist". In other multi-Doctor stories, the multiple actors are all credited as "The Doctor", the exception being "The Three Doctors" (1972–73), which credited William Hartnell, Patrick Troughton and Jon Pertwee as "Doctor Who" as the 1972 serial preceded the practice of crediting the character as "The Doctor". In "Human Nature" (2007), the plot involves the Tenth Doctor altering
The End of Time (Doctor Who) The End of Time (Doctor Who) The End of Time is a two-part story made up of the fourth and fifth of five special episodes of the British science fiction television series "Doctor Who" broadcast between December 2008 and January 2010. "The End of Time" was originally broadcast in the United Kingdom on BBC One on 25 December 2009 and 1 January 2010, and is the fifth "Doctor Who" Christmas special. This is the last story for lead actor David Tennant, who handed over the role of alien time traveller the Doctor to Matt Smith. It is also the last