Cast
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)
Crew
Virgil W. Vogel
Director
Arthur C. Pierce
Story
Arthur C. Pierce
Screenplay
Harry Arnold
Original Music Composer
Hilding Bladh
Director of Photography
Tom Rolf
Editor
Bertil Jernberg
Producer
Gustaf Unger
Co-Producer
Odert von Schoultz
Special Effects
Shirley Cytron
Editor
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