Barbara Wilson
Diane Wilson
Acting
Sten Gester
Erik Engström
Acting
Robert Burton
Dr. Frederick Wilson
Acting
Bengt Blomgren
Col. Robert Bottiger
Acting
Åke Grönberg
Dr. Henrik
Acting
John Carradine
Narrator (US Re-Edit)
Acting
Gösta Prüzelius
Dr. Walter Ullman
Acting
Brita Borg
Singer (uncredited)
Acting
Doreen Denning
Anna (uncredited)
Acting
Ittla Frodi
Girlfriend in Volvo (uncredited)
Acting
Lars Åhrén
The Monster (uncredited)
Acting
Steve Conte
American Radio Supervisor #2 (US TV version) (uncredited)
Acting
Fred Hoffman
Doctor (US TV version) (uncredited)
Acting
Allan Johansson
(uncredited)
Sound
G.J. Mitchell
Diane's Psychiatrist (US TV version) (uncredited)
Acting
Chuck Niles
Second Doctor (US TV version) (uncredited)
Acting
Gustaf Unger
Air Passenger with Dark Glasses (uncredited)
Production
Katherine Victor
Diane's Mother (US TV version) (uncredited)
Acting