Parker / Brains (voice)
David Graham
Lady Penelope (voice)
Sylvia Anderson
Scott Tracy (voice)
Shane Rimmer
Virgil Tracy (voice)
David Holliday
Captain Scarlet (voice)
Francis Matthews
Captain Blue (voice)
Ed Bishop
The Mysterons / Colonel White / Captain Black (voice)
Donald Gray
Steve Zodiac / Captain Grey (voice)
Paul Maxwell
Robert the Robot (voice, uncredited)
Gerry Anderson
Director
David Lane
Music
Barry Gray
David Elliott
Alan Perry
Stephen La Rivière
Desmond Saunders