Calificación
Reparto

Basil Rathbone
Sherlock Holmes

Nigel Bruce
Dr. Watson

Ida Lupino
Ann Brandon

Alan Marshal
Jerrold Hunter

Terry Kilburn
Billy

George Zucco
Professor Moriarty

Henry Stephenson
Sir Ronald Ramsgate

E. E. Clive
Inspector Bristol

Arthur Hohl
Henchman Bassick

May Beatty
Mrs. Jameson, Brandon Housekeeper

Peter Willes
Lloyd Brandon

Mary Gordon
Mrs. Hudson

Holmes Herbert
Justice of the Court

George Regas
Henchman Mateo

Mary Forbes
Lady Conyngham

Frank Dawson
Dawes, Moriarty's servant