as Sherlock Holmes

as Dr. John H. Watson

as Adrea Spedding

as Insp. Lestrade

as Norman Locke

as Radlik

as Adam Gilflower

as Mrs. Hudson

as Larry (uncredited)

as Artie - Shooting Gallery Attendant (uncredited)

as Fred Garvin (uncredited)

as Fortune Teller (uncredited)

as Obongo - Pygmy (uncredited)

as Charwoman (uncredited)

as Charwoman (uncredited)

as News Vendor (uncredited)

as Carnival Patron (uncredited)

as Toy Doll Attendant (uncredited)

as Susan (uncredited)

as Radio Announcer (uncredited)

as Casino Patron (uncredited)

as Casino Patron (uncredited)

as News Vendor (uncredited)

as Robert (uncredited)

as Casino Patron (uncredited)

as Casino Patron (uncredited)

as Doorman (uncredited)

as Casino Croupier (uncredited)

as Henchman Taylor (uncredited)

as Plainclothesman (uncredited)

as Casino Patron (uncredited)