cast
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Stuart Erwin
Dwight Wilson
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Dorothy Wilson
Patricia Merrick, also known as Mlle. Mystera
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Warner Oland
Dr. Paul Cornelius
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Dudley Digges
Horace Merrick
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Gertrude Hoffmann
Mattie (as Gertrude W. Hoffman)
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Oscar Apfel
Chief of Detectives John F. O'Hara
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Frank Reicher
Joe Valerie
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Jane Darwell
Mrs. Marble
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Stanley Blystone
Police Car Driver (uncredited)
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Ed Brady
Paddywagon Cop (uncredited)
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Tom Brower
Detective Schultz (uncredited)
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Pat O'Malley
Detective Brady (uncredited)
- Ted Oliver Police Desk Sergeant Hamilton (uncredited)
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Irving Pichel
Police Radio Announcer (voice) (uncredited)
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Max Wagner
Policeman in Car (uncredited)