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Donald Meek as Doctor Crabtree |
 |
John Hamilton as Inspector Carr |
 |
Frances Dale as Dorothy Paige |
 |
Hobart Cavanaugh as Martin Hill |
| Directing | Arthur Hurley | Director |
| Writing | Burnet Hershey | Adaptation |
| Writing | S.S. Van Dine | Writer |
| Camera | Edwin B. DuPar | Director of Photography |
