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Donald Meek as Dr. Amos Crabtree |
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John Hamilton as Inspector Carr |
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Helen Flint as Ann Clyde |
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Lyle Talbot as Police Capt. Dick Rugg (as Lysle Talbot) |
| Writing | S.S. Van Dine | Writer |
| Directing | Arthur Hurley | Director |
| Writing | Burnet Hershey | Writer |
| Crew | Edwin B. DuPar | Cinematography |
