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Basil Rathbone as Sherlock Holmes |
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Nigel Bruce as Dr. John Watson |
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Dennis Hoey as Inspector Lestrade |
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Evelyn Ankers as Naomi Drake |
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Miles Mander as Giles Conover |
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Ian Wolfe as Amos Hodder |
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Charles Francis as Francis Digby, curator |
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Holmes Herbert as James Goodram, courier |
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Richard Aherne as Museum Guard Bates |
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Mary Gordon as Mrs. Hudson |
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Rondo Hatton as The Hoxton Creeper |
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Harry Cording as George Gelder (uncredited) |
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Billy Bevan as Constable With Food Tray (uncredited) |
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Leyland Hodgson as Customs Officer (uncredited) |
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Eric Wilton as Chauffeur (uncredited) |
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Lillian Bronson as Maj. Harker's Housekeeper (uncredited) |
| Production | Roy William Neill | Producer |
| Directing | Roy William Neill | Director |
| Editing | Ray Snyder | Editor |
| Art | John B. Goodman | Art Direction |
| Camera | Virgil Miller | Director of Photography |
| Writing | Bertram Millhauser | Writer |
| Writing | Arthur Conan Doyle | Original Story |
| Art | Martin Obzina | Art Direction |
| Sound | Bernard B. Brown | Sound Director |
| Art | Russell A. Gausman | Set Decoration |
| Art | Edward R. Robinson | Set Decoration |
| Costume & Make-Up | Vera West | Costume Design |
| Sound | Paul Sawtell | Original Music Composer |
| Sound | Paul Sawtell | Music Director |
| Production | Howard Benedict | Executive Producer |
