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Trailer
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Main Cast
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William Gargan
Ellery Queen
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Margaret Lindsay
Nikki Porter
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Charley Grapewin
Inspector Richard Queen
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Gale Sondergaard
Mrs. Van Dorn
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Gilbert Roland
Paul Gillette
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Sig Ruman
Heinrich - Spy Leader
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James Burke
Police Sgt. Velie
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Ernst Deutsch
Dr. Morse - Lido Club Physician
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Maurice Cass
Mr. Calkus - Museum Owner
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Minor Watson
Cmdr. Lang
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ID: tt0034703