Doctor Who - Twice Upon A Time

This Christmas, the Doctor comes face to face with ... the Doctor! The epic finale to the Peter Capaldi era of Doctor Who, Twice Upon a Time, features the return of Pearl Mackie and special guests Mark Gatiss (Sherlock) and David Bradley (Filch in the Harry Potter movies). It will feature two special bonus pieces, taking you behind the scenes to the filming of this very special Christmas Special and celebrating the tenures of Peter Capaldi as the Doctor and Steven Moffat as showrunner and lead writer.