Reparto
Patrick Troughton
The Doctor
Frazer Hines
Jamie McCrimmon
Deborah Watling
Victoria Waterfield
Peter Barkworth
Clent
Peter Sallis
Penley
Angus Lennie
Storr
Peter Diamond
Davis
George Waring
Arden
Roy Skelton
Voice of the Computer
Bernard Bresslaw
Varga
Sonny Caldinez
Turoc
Michael Attwell
Isbur
