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 (series 12) her second series as the Thirteenth Doctor, the most recent incarnation of the Doctor, an alien Time Lord who travels through time and space in their TARDIS, which appears to be a British police box on the outside. The series also stars Bradley Walsh, Tosin Cole and Mandip Gill as the Doctor's travelling companions, Graham O'Brien, Ryan Sinclair and Yasmin Khan, respectively. The twelfth series was originally reported to be broadcast in late 2019 by "Starburst"; instead, the BBC confirmed after the eleventh series' finale that the series will premiere in early 2020. Ed Hime is set to write an