Holmes and Watson match wits with an opera star intent on blackmailing a king.
Eille Norwood
Sherlock Holmes
Alfred Drayton
King Wilhelm von Ormstein
Miles Mander
Godfrey Norton
Hubert Willis
Dr. John Watson
Mme. d'Esterre
Mrs. Hudson
Joan Beverley
Irene Adler
Annie Esmond
Maid
