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Arthur Wontner as Sherlock Holmes |
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Ian Fleming as Dr. John Watson |
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Minnie Rayner as Mrs. Hudson |
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Leslie Perrins as Ronald Adair |
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Jane Welsh as Kathleen Adair |
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Norman McKinnel as Prof. Robert Moriarty / Col. Henslowe |
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William Fazan as Thomas Fisher |
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Sydney King as Tony Rutherford |
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Philip Hewland as Inspector Lestrade |
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Gordon Begg as Marston, the butler |
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Louis Goodrich as Colonel Sebastian Moran |
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Harry Terry as No. 16 |
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Charles Paton as J.J. Godfrey |
| Directing | Leslie S. Hiscott | Director |
| Writing | Cyril Twyford | Screenplay |
| Editing | Jack Harris | Editor |
| Writing | Arthur Conan Doyle | Story |
| Camera | Sydney Blythe | Director of Photography |
| Production | Julius Hagen | Producer |
| Sound | Baynham Honri | Sound Recordist |
| Art | James A. Carter | Art Direction |
| Sound | John Greenwood | Original Music Composer |
