Cast Principale
John Barrymore
Sherlock Holmes
Roland Young
Dr. Watson
Carol Dempster
Alice Faulkner
Gustav von Seyffertitz
Professor Moriarty
Louis Wolheim
Craigin
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Percy Knight
Sid Jones
William Powell
Forman Wells
Hedda Hopper
Madge Larrabee
Reginald Denny
Prince Alexis
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Peggy Bayfield
Rose Faulkner
Lumsden Hare
Dr. Leighton
Anders Randolf
James Larrabee
