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 (series 6)
The sixth series of British science fiction television programme "Doctor Who" was shown in two parts. The first seven episodes were broadcast from April to June 2011, beginning with "The Impossible Astronaut" and ending with mid-series finale "A Good Man Goes to War". The final six episodes aired from August to October, beginning with "Let's Kill Hitler" and ending with "The Wedding of River Song". The main series was preceded by "A Christmas Carol", the 2010 Christmas special. The series was led by head writer and executive producer Steven Moffat, alongside executive producers Beth Willis and Piers Wenger. Sanne Wohlenberg, Marcus Wilson, and Denise Paul served as producers. The series is the sixth to air following the programme's revival in 2005, and is the thirty-second season overall.