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Boris Karloff as Gen. Nikolas Pherides |
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Ellen Drew as Thea |
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Marc Cramer as Oliver Davis |
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Katherine Emery as Mary St. Aubyn |
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Helene Thimig as Madame Kyra |
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Alan Napier as St. Aubyn |
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Jason Robards Sr. as Albrecht |
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Ernst Deutsch as Dr. Drossos |
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Skelton Knaggs as Andrew Robbins (uncredited) |
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Sherry Hall as Col. Kobestes (uncredited) |
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Erick Hanson as Officer (uncredited) |
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Rose Hobart as Mary St. Aubyn (in long shot; uncredited) |
| Editing | Lyle Boyer | Editor |
| Production | Jack J. Gross | Executive Producer |
| Directing | Mark Robson | Director |
| Camera | Jack MacKenzie | Director of Photography |
| Production | Val Lewton | Producer |
| Sound | Leigh Harline | Original Music Composer |
| Writing | Ardel Wray | Screenplay |
| Art | Walter E. Keller | Art Direction |
| Art | Darrell Silvera | Set Decoration |
| Art | Albert S. D'Agostino | Art Direction |
| Art | Albert Greenwood | Set Decoration |
| Sound | Jean L. Speak | Sound Recordist |
