| Basil Rathbone | Sherlock Holmes |
| Nigel Bruce | Doctor Watson |
| Dennis Hoey | Inspector Lestrade |
| Evelyn Ankers | Naomi Drake |
| Miles Mander | Giles Conover |
| Ian Wolfe | Amos Hodder |
| Charles Francis | Digby |
| Holmes Herbert | James Goodram |
| Richard Nugent | Bates |
| Mary Gordon | Mrs. Hudson |
| Rondo Hatton | The Creeper |
| Director | Roy William Neill |
| Producer | Roy William Neill |
| Writer | Bertram Millhauser; Arthur Conan Doyle |
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