The Daleks will be among the foes to return for the 50th anniversary special of Doctor Who.
The creatures celebrate their own half century this year and will appear in the BBC1 show to mark the milestone in a show which will unite Matt Smith with his predecessor in the role of the Doctor, David Tennant.
The episode will also see the return of Billie Piper - who played Rose Tyler - as well as Jenna Coleman, who has been seen by viewers during the most recent series as Clara Oswald.
When the Daleks make their return they will be in their original design, the classic look had been updates in 2010.
The programme's lead writer and executive producer Steven Moffat 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."