VIDEO: DOCTOR WHO Unveils 50th Anniversary Teaser!

The BBC has released the teaser trailer for the upcoming Doctor Who 50th Anniversary Special, The Day of the Doctor, featuring all of the Doctor's incarnations (and a selection of his friends and foes!). Check it out below!

BBC America will co-produce and premiere An Adventure in Space and Time as part of the channel's celebrations to mark the 50th anniversary of Doctor Who. An Adventure in Space and Time will tell the story of the genesis of Doctor Who - which first aired on November 23, 1963 - and the many personalities involved.

David Bradley (Harry Potter) is set to play the first ever Doctor, the iconic William Hartnell, in the drama written by Mark Gatiss (Sherlock, Doctor Who), who will also serve as executive producer alongside Steven Moffat (Doctor Who, Sherlock) and Caroline Skinner (Doctor Who, The Fades). An Adventure in Space and Time (1x90) is a co-production between BBC Cymru Wales and BBC AMERICA. The drama will premiere later this year on BBC AMERICA.

The BBC's Head of Drama Sydney Newman, credited with the creation of the show, will be portrayed by Brian Cox (The Bourne Supremacy, Bourne Identity) and the producer, Verity Lambert, by Jessica Raine (Call the Midwife). The director of the first ever episode An Unearthly Child, Waris Hussein, will be played by Sacha Dhawan (History Boys, Last Tango In Halifax).