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 Doctor (Doctor Who) the Damned". In the Virgin New Adventures, the Seventh Doctor is shown briefly interacting with a man who may be the Third Doctor in the Sherlock Holmes crossover novel "All-Consuming Fire", but the scene is narrated from the perspective of Dr. Watson and thus the other man is never expressly identified. The Virgin Missing Adventures novel "Cold Fusion" is a unique twist on the traditional multi-Doctor story as it focuses on the Fifth Doctor's adventures before he meets the Seventh, where normal stories treat the later Doctor as 'the' Doctor. The BBC novel "The Eight Doctors" was written by respected