Sherlock Holmes

Basil Rathbone

Dr. John H. Watson

Nigel Bruce

Adrea Spedding

Gale Sondergaard

Prof. Moriarty

Lionel Atwill

Inspector Lestrade

Dennis Hoey

Dr. Franz Tobel

William Post Jr.

Charlotte Eberli

Kaaren Verne

Mrs. Hudson

Mary Gordon

Adam Gilflower

Arthur Hohl

Henchman Radlik

Alec Craig

Kurt (uncredited)

Harry Woods

Sir Reginald Bailey

Holmes Herbert

Norman Locke

Vernon Downing

Gottfried (uncredited)

George Burr Macannan

Susan (uncredited)

Lydia Bilbrook

Professor Frederick Hoffner (uncredited)

Henry Victor

Mueller (uncredited)

Paul Fix

Jack Brady (uncredited)

Harry Cording

Radio Announcer (uncredited)

John Burton

Peg Leg (uncredited)

Harold De Becker

Braun (uncredited)

Rudolph Anders

Larry (uncredited)

Teddy Infuhr

Robert (uncredited)

Stanley Logan

Swiss waiter (uncredited)

Paul Bryar

Fortune Teller (uncredited)

Belle Mitchell

Casino Croupier (uncredited)

John Roche

R.A.F. Air Officer

Leyland Hodgson

London Bobbie (uncredited)

Whit Bissell

Artie (uncredited)

Donald Stuart

Female RAF pilot (uncredited)

Vicki Campbell

Scotland Yard Detective (uncredited)

Colin Kenny

Kurt

Philip Van Zandt

Foot patrolman (uncredited)

Guy Kingsford

RAF officer watching bombsight test (uncredited)

James Craven

Scotland Yard Man

Gerard Cavin

Policeman outside Durer's (uncredited)

George Eldredge

George (uncredited)

Michael Mark

Leslie Denison

Hugh Herbert