Sherlock Holmes and the Secret Weapon

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)

H

Harold De Becker Peg Leg (uncredited)

Paul Fix Mueller (uncredited)

Henry Victor Professor Frederic Hoffner (uncredited)