Diane Wilson

Erik Engström

Dr. Frederick Wilson

Col. Robert Bottiger

Dr. Henrik

Narrator (US Re-Edit)

Dr. Walter Ullman

Singer (uncredited)

Anna (uncredited)

Girlfriend in Volvo (uncredited)

The Monster (uncredited)

American Radio Supervisor #2 (US TV version) (uncredited)

Doctor (US TV version) (uncredited)

(uncredited)

Diane's Psychiatrist (US TV version) (uncredited)

Second Doctor (US TV version) (uncredited)

Air Passenger with Dark Glasses (uncredited)

Diane's Mother (US TV version) (uncredited)