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Jim Bannon as Jack Packard |
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Anita Louise as Janet Mitchell |
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Michael Duane as Rex Kennedy |
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Barton Yarborough as Doc Long |
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Paul E. Burns as Leon Hartman |
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Thomas E. Jackson as Det. Capt. Quinn |
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Mona Barrie as Louise Mitchell |
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Frank Wilcox as Prof. Arthur Logan |
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Richard Hale as Curator Raymond Halliday |
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Ludwig Donath as Dr. Karger |
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Mary Newton as Nurse |
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Edward Earle as E. R. Willard |
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Fred Godoy as Senor Mendoza |
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John Elliott as John, butler |
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Frank Mayo as Quentin Mitchell |
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Frank Martin as Introductory Narrator (voice) |
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Coulter Irwin as Frank, Willard's aide |
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Bud Averill as Closing-Time Museum Guard |
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Harry Strang as Brophy, museum watchman |
| Directing | Henry Levin | Director |
| Crew | Carlton E. Morse | Radio Play |
| Writing | Charles O'Neal | Screenplay |
| Crew | Dwight V. Babcock | Additional Dialogue |
| Camera | Henry Freulich | Director of Photography |
| Art | Robert Peterson | Art Direction |
| Art | George Montgomery | Set Decoration |
| Directing | Carl Hiecke | Assistant Director |
| Editing | Jerome Thoms | Editor |
| Sound | Mischa Bakaleinikoff | Music Director |
