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Don Porter as Professor Claude Ruppert |
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Brenda Joyce as June Spenser |
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Patricia Morison as Eve Ruppert |
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Milburn Stone as Gerald King |
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Samuel S. Hinds as Dean Albert Sears |
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Kathleen Howard as Eddie |
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Griff Barnett as Dr. George Carey |
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Charles D. Brown as Inspector Pepper |
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Ted Hecht as Lane |
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Leonard East as Howard |
| Directing | Lewis D. Collins | Director |
