Doctor Who (2013 specials) Doctor", saw the departure of Smith from the series and the introduction of Peter Capaldi as the Twelfth Doctor. "The Day of the Doctor" features the return of the Zygons for the first time since "Terror of the Zygons" in 1975. "The Time of the Doctor" draws together a number of plot threads that have run through the series since the Eleventh Doctor's first episode in 2010. <onlyinclude></onlyinclude> In "The Day of the Doctor", Smith and Coleman star alongside David Tennant and Billie Piper; Tennant reprised his role as the Tenth Doctor, while Piper, although credited as playing Rose Tyler,
Rose Tyler history, when she attempts to save the life of her father Pete Tyler (Shaun Dingwall), who had died when she was a baby. Throughout these journeys, she and the Doctor are haunted by two mysterious recurring words: 'Bad Wolf'. Rose, the Doctor, and new companion Captain Jack (John Barrowman) come to understand the meaning of this phrase when they encounter an unstoppable army of evil alien Daleks on the space station Satellite 5. To return to the Doctor after he sends her home to Earth in series finale "The Parting of the Ways", Rose tears open the console of the