Astronauts on a mission to Mars attack the city of the Mysterons, a race of aliens with the ability to create duplicates of beings and objects. In revenge, the Mysterons declare war on humanity.
Francis Matthews
Captain Scarlet (voice)
Ed Bishop
Captain Blue (voice)
Donald Gray
Colonel White / Captain Black / The Mysterons (voice)
Cy Grant
Lieutenant Green (voice)
Elizabeth Morgan
Destiny Angel / Rhapsody Angel / Harmony Angel (voice)
Gary Files
Captain Magenta (voice)
David Healy
(voice) (credit only)
Charles Tingwell
Lieutenant Dean / Captain Brown / Agent 042 / Various Characters (voice)
