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Leo Gorcey as Terence Aloysius 'Slip' Mahoney |
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Huntz Hall as Horace Debussy 'Sach' Jones |
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Lloyd Corrigan as Edgar Alden Franklin Smith |
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Lela Bliss as Margo |
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Philip Van Zandt as Dr. Basil Granville |
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Bernard Gorcey as Louie |
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William Benedict as Whitey |
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Buddy Gorman as Butch |
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David Gorcey as Chuck |
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Jan Kayne as Cynthia |
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Argentina Brunetti as Mrs. Parelli |
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Marshall Bradford as Professor Krantz |
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Robert Coogan as Jack Eagan |
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Michael Ross as Gus |
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Bess Flowers as Seance Guest (uncredited) |
| Sound | Edward J. Kay | Music Director |
| Writing | Bert Lawrence | Dialogue |
| Camera | Marcel Le Picard | Director of Photography |
| Directing | Wesley Barry | Assistant Director |
| Directing | Mary Chaffee | Continuity |
| Production | Jan Grippo | Producer |
| Editing | William Austin | Editor |
| Sound | Tom Lambert | Sound |
| Art | Dave Milton | Art Direction |
| Art | Raymond Boltz Jr. | Set Decoration |
| Production | Allen K. Wood | Production Manager |
| Directing | William Beaudine | Director |
| Crew | Bert Lawrence | Additional Dialogue |
| Writing | Charles R. Marion | Screenplay |
