cast
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Lon Chaney Jr.
Dan McCormick
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Lionel Atwill
Dr. Paul Rigas
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Anne Nagel
June Lawrence
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Frank Albertson
Mark Adams
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Samuel S. Hinds
Dr. John Lawrence
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William B. Davidson
District Attorney Ralph B. Stanley
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Ben Taggart
Detective Sergeant Regan
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Constance Bergen
Nurse
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Ivan Miller
Doctor
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Chester Gan
Chinese Boy, Wong
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George Meader
Dr. Bruno
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Frank O'Connor
Detective
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John Dilson
Medical Examiner
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Byron Foulger
Alienist #2
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Jessie Arnold
Mrs. Frank Davis (uncredited)
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James Blaine
Charlie, Prison Guard (uncredited)
- Gary Breckner Radio Announcer (uncredited)
- Lowell Drew Jury Foreman (uncredited)
- John Ellis Assistant District Attorney (uncredited)
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Douglas Evans
Police Radio Announcer (uncredited)
- Jack Gardner Reporter (uncredited)
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William Hall
Mike - Dynamo Operator (uncredited)
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Russell Hicks
Warden Harris (uncredited)
- Wright Kramer Judge (uncredited)
- Tom Quinn Detective (uncredited)
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Bob Reeves
Prison Guard (uncredited)
- Mel Ruick Defense Attorney (uncredited)
- Francis Sayles Frank Davis (uncredited)
- Paul Scott Prison Chaplain (uncredited)
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David Sharpe
Hay Wagon Passenger (uncredited)
- Victor Zimmerman Dynamo Operator #2 (uncredited)
- Corky Corky the Dog (uncredited)