Roy William Neill Director, Producer Basil Rathbone Sherlock Holmes Actor Nigel Bruce Dr. John H. Watson Actor Patricia Morison Mrs. Hilda Courtney Actor Edmund Breon Julian "Stinky" Emery Actor Frederick Worlock Colonel Cavanaugh Actor Carl Harbord Inspector Hopkins Actor Patricia Cameron Evelyn Clifford Actor Tom Dillon Detective Sergeant Thompson Actor Harry Cording Hamid Actor Topsy Glyn The Kilgour Child Actor Mary Gordon Mrs. Hudson Actor Ian Wolfe Commissioner of Scotland Yard Actor Lillian Bronson Minister's Wife Actor Frank Gruber Writer