Full Cast
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Richard Conte
Bill Locklin
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Rona Anderson
Julia Jackson
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Russell Napier
Supt. John Harrington
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Sylva Langová
Hilde Heller, chief spy
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Colin Gordon
Harry Martin - reporter
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Donald Bisset
Editor Harris
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John King-Kelly
Spy Henchman
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Bernard Rebel
Vinson - Spy Henchman
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Arnold Marlé
Prof. Leon Dushenko
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John Horsley
Det. Sgt. Gibson
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Jane Welsh
Supt. McCollum - sanitarium
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Aimée Delamain
Mrs. Henley
