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Béla Lugosi as Dr. Lorenz |
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Luana Walters as Patricia Hunter |
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Tristram Coffin as Dr. Foster |
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Elizabeth Russell as Countess Lorenz |
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Minerva Urecal as Fagah |
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Angelo Rossitto as Toby |
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Frank Moran as Angel |
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George Eldredge as Mike |
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Vince Barnett as Sandy |
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Kenneth Harlan as Editor Keenan |
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Joan Barclay as Alice Wentworth |
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Gwen Kenyon as Peggy Woods |
| Directing | Wallace Fox | Director |
| Writing | Harvey Gates | Screenplay |
| Writing | Sam Robins | Story |
| Sound | Johnny Lange | Music |
| Sound | Charles Dunworth | Music |
| Sound | Lew Porter | Music |
| Art | Dave Milton | Art Direction |
| Camera | Arthur Reed | Director of Photography |
| Production | Sam Katzman | Producer |
| Sound | Glen Glenn | Sound |
| Directing | Arthur Hammond | Assistant Director |
| Editing | Robert Golden | Editor |
| Production | Ed W. Rote | Production Manager |
| Production | Jack Dietz | Producer |
| Writing | Gerald Schnitzer | Story |
| Production | Barney A. Sarecky | Associate Producer |
