Sherlock Holmes
Doctor Watson
Moriarty (as Moriarity)
Charlotte Eberli (as Kaaren Verne)
Dr. Franz Tobel
Lestrade
Sir. Reginald
Mrs. Hudson
Braun (uncredited)
Barfly (uncredited)
London Bobbie (uncredited)
Bar Singer (voice) (uncredited)
Swiss Waiter (uncredited)
RAF Officer (uncredited)
Woman RAF Pilot (uncredited)
Scotland Yard Man (uncredited)
Jack Brady (uncredited)
RAF Officer Watching Bombsight Test (uncredited)
Peg Leg (uncredited)
Military Officer (uncredited)
Bobbie (uncredited)
Policeman Outside Durer's (uncredited)
Mueller (uncredited)
Scotland Yard Detective (uncredited)
Foot Patrolman (uncredited)
Musician Playing Cimbalom (uncredited)
Gottfried (uncredited)
George (uncredited)
Professor Frederic Hoffner (uncredited)
Kurt (uncredited)