Michael Heathley
Lydia Heathley
Dr. Dennis Bord
Dr. Alex Leon
Maj. Sam Seagram
Brian Jackson
Sir Charles Craddock
Caroline Cartier
Prof. Carrington
Michael's Mother
George Jackson
Fisher
Inspector Carter
Agent Lawson
Dr. Ferguson
Maisie
Prof. Adams
General Adams (uncredited)
Sentry (uncredited)
Jim Barnes (uncredited)
Ted (uncredited)
Director
Production Controller
Production Manager
Special Effects
Special Effects
Continuity
Conductor
Camera Operator
Assistant Director
Makeup Artist
Special Effects
Sound Editor
Editor
Director of Photography
Original Music Composer
Art Direction
Costume Design
Sound Recordist
Producer
Executive Producer
Aerial Director of Photography
Sound Recordist
Screenplay
Writer
