Cast & Crew
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Basil RathboneSherlock Holmes - Nigel BruceDr. Watson
- Marjorie LordNancy Partridge
- Henry DaniellWiliam Easter
- George ZuccoHeinrich Hinckel
- John ArcherNaval Lt. Pete Merriam
- Gavin MuirMr. Lang
- Holmes HerbertMr. Ahrens; Thurston Hall:Senator Henry Babcock
- Roy William NeillDirector
- Howard BenedictProducer
- Bertram MillhauserWriter
- Lynn RiggsWriter