Barbara Wilson
Diane Wilson
Sten Gester
Erik Engström
Robert Burton
Dr. Frederick Wilson
Bengt Blomgren
Col. Robert Bottiger
Åke Grönberg
Dr. Henrik
John Carradine
Narrator (US Re-Edit)
Gösta Prüzelius
Dr. Walter Ullman
Brita Borg
Singer (uncredited)
Doreen Denning
Anna (uncredited)
Ittla Frodi
Girlfriend in Volvo (uncredited)
Lars Åhrén
The Monster (uncredited)
Steve Conte
American Radio Supervisor #2 (US TV version) (uncredited)
Fred Hoffman
Doctor (US TV version) (uncredited)
Allan Johansson
(uncredited)
