Arthur Wontner

Character: Sherlock Holmes

Jane Welsh

Character: Lady Violet Lamsden

Miles Mander

Character: Claude Holford

Francis L. Sullivan

Character: Baron von Guntermann

Ian Fleming

Character: Dr. John Watson

Dino Galvani

Character: Carlo Ravelli

Philip Hewland

Character: Insp. Lestrade

Minnie Rayner

Character: Mrs. Hudson

Anthony Holles

Character: Marquess de Chaminade