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 (2013 specials) Davies and John Barrowman, with David Tennant's wife Georgia Moffet and their children also guest starring. "The Day of the Doctor" formed the centerpiece of the celebrations, which encompassed programmes across all of the BBC's platforms, including "An Adventure in Space and Time", a "Culture Show" special entitled "Me, You and Doctor Who" presented by Matthew Sweet that explores the wider cultural significance of the show. CBBC broadcast a show called "12 Again" in which past and present stars of the show recounted their memories, Professor Brian Cox delivered a televised lecture on the science of "Doctor Who", and BBC