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.
Captain Scarlet (voice)
Francis Matthews
Captain Blue (voice)
Ed Bishop
Colonel White / Captain Black / The Mysterons (voice)
Donald Gray
Lieutenant Green (voice)
Cy Grant
Destiny Angel / Rhapsody Angel / Harmony Angel (voice)
Elizabeth Morgan
Captain Magenta (voice)
Gary Files
(voice) (credit only)
David Healy
Lieutenant Dean / Captain Brown / Agent 042 / Various Characters (voice)
Charles Tingwell
Captain Ochre / Jackson / Human Captain Black / Various Characters (voice)
Jeremy Wilkin
Delta-Tango 19 Pilot / Airport Controller (voice)
Neil McCallum
Delta-Tango 19 Co-Pilot (voice)
Martin King
Symphony Angel / Intercontinental Airlines Tannoy (voice)
Janna Hill
Melody Angel (voice)
Sylvia Anderson
Captain Grey / World President / Fire Chief (voice)
Paul Maxwell
(voice) (credit only)
Lian-Shin Yang