约翰·卡拉丁

John Carradine

饰：Narrator (US version)

约斯塔·普吕塞柳斯

Gösta Prüzelius

饰：Dr. Walter Ullman

罗伯特·伯顿

Robert Burton

饰：Dr. Frederick Wilson

George Mitchell

饰：Diane's psychiatrist (US TV version) (uncredited)

奥克·格伦贝里

Åke Grönberg

饰：Dr. Henrik

Sten Gester

饰：Erik Engström

Ittla Frodi

饰：Girlfriend in Volvo (uncredited)

Barbara Wilson

饰：Diane Wilson

Bengt Blomgren

饰：Col. Robert Bottiger

Katherine Victor

饰：Diane's mother (US TV version) (uncredited)

Lars Åhrén

Lars Åhrén

饰：The Monster,An alien,Tall nightclub soldier

Brita Borg

饰：Singer

Doreen Denning

饰：Anna

Fred Hoffman

Fred Hoffman

饰：Doctor

Allan Johansson

Gustaf Unger

饰：Air passenger with dark glasses

Steve Conte

Chuck Niles