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,
Doctor Who (2013 specials) Night of the Doctor", which featured Paul McGann returning to the role of the Eighth Doctor for the first time since 1996. At the 2013 Comic-Con, Matt Smith confirmed that production of the Christmas episode would begin in September, once his work on "How to Catch a Monster" was complete. Filming for "The Time of the Doctor" began on 8 September. On 10 September, Matt Smith and Jenna Coleman were seen filming on location at Lydstep Flats in Cardiff, which have previously been used in Series 1 and 2 as the Powell Estate where Rose Tyler lived with her mother