출연진
Patrick Troughton
The Doctor
Anneke Wills
Polly
Michael Craze
Ben Jackson
Frazer Hines
Jamie McCrimmon
Patrick Barr
Hobson
André Maranne
Benoit
Michael Wolf
Nils
John Rolfe
Sam
Mark Heath
Ralph
Alan Rowe
Voice from Space Patrol/Dr. Evans
Denis McCarthy
Voice of Rinberg
Barry Ashton
Scientist
Derek Calder
Scientist
Arnold Chazen
Scientist
Leon Maybank
Scientist
Victor Pemberton
Scientist
Edward Phillips
Scientist
Ron Pinnell
Scientist
Robin Scott
Scientist
Alan Wells
Scientist
Mark Heath
Scientist