The Doctor (Doctor Who) Big Finish Productions. Matt Smith made a brief "imagined" cameo seen only by actor William Hartnell (portrayed by David Bradley), in the movie dramatising the early years of Doctor Who "An Adventure in Space and Time". In early production documents, the Doctor was said to be 650 years old, although this was never stated on screen. By the time the Doctor did cite his age ("Let me see, in human terms, 400, yes, 450 years" in the serial "The Tomb of the Cybermen" (1967); he kept a 500-year diary), he had already regenerated to a younger form. The intention at
The Doctor (Doctor Who) The Doctor (Doctor Who) The Doctor is the title character in the long-running BBC science fiction television programme "Doctor Who". Since the show's inception in 1963, the character has been portrayed by thirteen lead actors. In the programme, "the Doctor" is the alias assumed by a centuries-old alien—a Time Lord from the planet Gallifrey—who travels through space and time in the TARDIS, frequently with companions. The transition to each succeeding actor is explained within the show's narrative through the plot device of "regeneration", a biological function of the Time Lord race that allows a change of cellular structure and appearance