Cast
Basil Rathbone
Sherlock Holmes
Nigel Bruce
Doctor Watson
Marjorie Riordan
Sheila Woodbury
Rosalind Ivan
Agatha Dunham
Morton Lowry
Steward
Leslie Vincent
Nikolas Watson
Martin Kosleck
Mirko
Rex Evans
Gregor
John Abbott
Jodri
Gerald Hamer
Kingston
William 'Wee Willie' Davis
Gubek
Frederick Worlock
Prime Minister
Tom Dillon
Matthias Cherney (uncredited)
James Carlisle
Aide (uncredited)
Olaf Hytten
Stimson (uncredited)
Gordon Jackson
Steward (uncredited)
Crew
Saul A. Goodkind
Editor
(Editing)
Roy William Neill
Director
(Directing)
Leonard Lee
Screenplay
(Writing)
Arthur Conan Doyle
Characters
(Writing)
Paul Ivano
Director of Photography
(Camera)
Martin Obzina
Art Direction
(Art)
Ralph Sylos
Set Decoration
(Art)
John B. Goodman
Art Direction
(Art)
Bernard B. Brown
Sound Director
(Sound)
Vera West
Costume Design
(Costume & Make-Up)
Jack Pierce
Makeup Department Head
(Costume & Make-Up)
Russell A. Gausman
Set Decoration
(Art)
Howard Benedict
Executive Producer
(Production)
Roy William Neill
Producer
(Production)