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კრისტოფერ პლამერი as Sherlock Holmes |
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Thorley Walters as Dr. Watson |
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Basil Henson as Colonel Ross |
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Gary Watson as Inspector Gregory |
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Richard Beale as Straker |
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Donald Burton as Fitzroy-Simpson |
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Barry Linehan as Silas Brown |
| Directing | John Davies | Director |
| Writing | Julian Bond | Writer |
| Production | William F. Deneen | Producer |
| Editing | Alex Kirby | Editor |
| Writing | Arthur Conan Doyle | Novel |
