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Vincent Price as Dr. Richard Cross |
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Lynn Bari as Nurse Elaine Jordan |
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Frank Latimore as Lt. Paul Stewart |
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Anabel Shaw as Mrs. Janet Stewart |
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Stephen Dunne as Dr. Stevens (as Michael Dunne) |
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Reed Hadley as District Attorney O'Neill |
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Renee Carson as Miss Hatfield - Head Nurse |
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Charles Trowbridge as Dr. Franklin Harvey |
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Robert Adler as Frank - Male Nurse |
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Harry Carter as Sanitarium Orderly |
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Ruth Clifford as Mrs. Margaret Cross |
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John Davidson as Mr. Edwards |
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Selmer Jackson as Dr. Blair |
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Ruth Nelson as Mrs. Margaret Cross (voice) |
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George E. Stone as Cab Driver |
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Charles Tannen as Hotel Clerk |
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Pierre Watkin as Blake - Belmont Arms Hotel Manager |
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Mary Young as Mrs. Penny |
| Camera | Joseph MacDonald | Director of Photography |
| Camera | Glen MacWilliams | Director of Photography |
| Writing | Eugene Ling | Screenplay |
| Crew | Martin Berkeley | Additional Dialogue |
| Writing | Albert DeMond | Story |
| Production | Aubrey Schenck | Producer |
| Directing | Alfred L. Werker | Director |
| Sound | David Buttolph | Original Music Composer |
| Production | Frances C. Richardson | Researcher |
| Art | Lyle R. Wheeler | Art Direction |
| Art | Thomas Little | Set Decoration |
| Editing | Harmon Jones | Editor |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Art | Boris Leven | Art Direction |
| Costume & Make-Up | Kay Nelson | Costume Design |
