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 with recovery following a potentially fatal injury.
Doctor Who – The Companion Chronicles
The Companion Chronicles is an ongoing series of stories detailing adventures usually featuring the Doctor, as told by various former companions of his, with only one further voice actor taking part in the narration. It began in 2007 as a mini-series of four stories about adventures of the first four Doctors (none of whom appear in regular Big Finish audio plays, as William Hartnell, Patrick Troughton and Jon Pertwee died before they began and Tom Baker had declined to participate at that time ), but its popularity ensured that it returned for a second mini-series, and then in July 2008 releases became monthly. The monthly series of Companion Chronicles ended in June 2014 but the range will continue with box set releases.