On screen
Cast
16 credited performers
Patrick Troughton
The Doctor
Frazer Hines
Jamie McCrimmon
Deborah Watling
Victoria Waterfield
Peter Barkworth
Clent
Peter Sallis
Penley
Artwork unavailable
Wendy Gifford
Miss Garrett
Angus Lennie
Storr
Peter Diamond
Davis
Artwork unavailable
George Waring
Arden
Artwork unavailable
Malcolm Taylor
Walters
Roy Skelton
Voice of the Computer
Bernard Bresslaw
Varga
Artwork unavailable
Roger Jones
Zondal
Sonny Caldinez
Turoc
Michael Attwell
Isbur
Artwork unavailable
Tony Harwood
Rintan