The BBC just revealed that the Doctor Who 50th Anniversary Special will star Matt Smith, Jenna Coleman, David Tennant, Billie Piper, John Hurt and Joanna Page. In a surprise twist in the recent series finale it was revealed John Hurt would be playing a Doctor, alongside Smith and Tennant. The Daleks are the second monster to be announced for the 50th and will join the shape shifting Zygons, which have only appeared in the show once before in 1975. The Daleks were one of the first monsters to terrify audiences in 1963, 50 years ago, cementing their place in British popular culture. Steven Moffat, lead writer and executive producer said, "The Doctor once said that you can judge a man by the quality of his enemies, so it's fitting that for this very special episode, he should be facing the greatest enemies of all." The 50th anniversary episode was shot earlier this year at BBC Cymru Wales' Roath Lock Studios in Cardiff and across South Wales. Filming also took place in iconic London locations the Tower of London and Trafalgar Square for a huge stunt, which saw Matt Smith dangling from a TARDIS alongside Nelson's Column. The Doctor Who 50 Anniversary Special will air on BBC One on November 23, 2013.