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
Doctor Who the Doctor. After the film, he continued the role in audio books and was confirmed as the eighth incarnation through flashback footage and a mini episode in the 2005 revival, effectively linking the two series and the television movie. In 2011, David Yates announced that he had started work with the BBC on a "Doctor Who" film, a project that would take three or more years to complete. Yates indicated that the film would take a different approach to "Doctor Who", although the current "Doctor Who" showrunner Steven Moffat stated later that any such film would not be a reboot