Doctor Who Doctor's nature, somewhere between the twelfth and final incarnation. On rare occasions, other actors have stood in for the lead. In "The Five Doctors", Richard Hurndall played the First Doctor due to William Hartnell's death in 1975; 34 years later David Bradley similarly replaced Hartnell in "Twice Upon a Time". In "Time and the Rani", Sylvester McCoy briefly played the Sixth Doctor during the regeneration sequence, carrying on as the Seventh. For more information, see the list of actors who have played the Doctor. In other media, the Doctor has been played by various other actors, including Peter Cushing in
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