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
Partners in Crime (Doctor Who) Partners in Crime (Doctor Who) "Partners in Crime" is the first episode of the fourth series of the British science fiction television series "Doctor Who". It was broadcast on BBC One on 5 April 2008. The episode reintroduced actor and comedian Catherine Tate as the temp Donna Noble, who had previously appeared in the 2006 Christmas Special "The Runaway Bride". In the episode, Donna and the alien time traveller the Tenth Doctor (David Tennant) meet while separately investigating Adipose Industries, a company that has created a revolutionary diet pill. Together, they attempt to stop the death of thousands of people