Cast

Basil Rathbone

Sherlock Holmes

Nigel Bruce

Doctor Watson

Lionel Atwill

Professor Moriarty

William Post Jr.

Dr. Franz Tobel

Kaaren Verne

Charlotte Eberli

Dennis Hoey

Inspector Lestrade

Holmes Herbert

Sir Reginald

Mary Gordon

Mrs. Hudson

Harry Cording

Jack Brady (uncredited)

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Harold De Becker

Peg Leg (uncredited)

Crew

Roy William Neill

Director (Directing)

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Edward T. Lowe Jr.

Screenplay (Writing)

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Scott Darling

Screenplay (Writing)

Frank Skinner

Original Music Composer (Sound)

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Edmund L. Hartmann

Screenplay (Writing)

Arthur Conan Doyle

Story (Writing)

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Scott Darling

Adaptation (Writing)

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Edward T. Lowe Jr.

Adaptation (Writing)

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Jack Otterson

Art Direction (Art)

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Russell A. Gausman

Set Decoration (Art)