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Herbert Marshall as Dr. Stephen Dominik |
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Ruth Chatterton as Professor Anna Mathe |
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Simone Simon as Marie Claudel |
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Constance Collier as Professor Augusta Wimmer |
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J. Edward Bromberg as Dr. Spindler |
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Dixie Dunbar as Luisa |
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John Qualen as Toni |
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Shirley Deane as Fritzi |
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Tyrone Power as Count Vallais |
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Frank Reicher as Dr. Hoffenreich |
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George Hassell as Dr. Wilfinger |
| Directing | Irving Cummings | Director |
| Writing | Gene Markey | Screenplay |
