Robots of the Round Table (TV story)

Robots of the Round Table is the twelfth episode of the second series of The Doctor.

Synopsis
''King Arthur returns to Camelot after finishing a quest and discovers a terrible truth: the evil Mordred has usurped his throne and is in the process of upgrading the people of Britain into the ultimate soldiers with the help of an army of metal men from the future. Arthur's only hope of liberating his country before it is too late is a trio of time travelers: Donna Noble, Jack Harkness, and River Song.''

Cast

 * Donna Noble - Catherine Tate
 * Captain Jack Harkness - John Barrowman
 * River Song - Alex Kingston
 * Voice of the Cybermen - Nicholas Briggs

Crew

 * Written by - The Time Lord