Basil Rathbone
Sherlock Holmes
Nigel Bruce
Dr. John H. Watson
Gale Sondergaard
Adrea Spedding
Dennis Hoey
Insp. Lestrade
Vernon Downing
Norman Locke
Alec Craig
Radlik
Arthur Hohl
Adam Gilflower
Mary Gordon
Mrs. Hudson
Teddy Infuhr
Larry (uncredited)
Donald Stuart
Artie - Shooting Gallery Attendant (uncredited)
Harry Cording
Fred Garvin (uncredited)
Belle Mitchell
Fortune Teller (uncredited)
Angelo Rossitto
Obongo - Pygmy (uncredited)
Sylvia Andrew
Charwoman (uncredited)
