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 7)
The seventh series of the British science fiction television programme "Doctor Who" aired from 1 September 2012 to 18 May 2013, being split into two parts, as with the previous series. The series was broadcast concurrently on BBC One in the United Kingdom, BBC America in the United States, and on Space in Canada, and also on ABC in Australia, with the first five episodes each released a week after its UK and North American premiere and the remainder released the day after each episode's UK premiere. Following its premiere on 1 September 2012, the series aired weekly until 29 September 2012. Six episodes were broadcast in 2012, including the 2012 Christmas special, "The Snowmen", which aired separately from the main series. The remaining eight episodes began broadcasting on 30 March 2013. "The Snowmen" introduced a new TARDIS interior, title sequence, theme tune, and outfit for the Doctor.