Basil Rathbone в ролята на Sherlock Holmes
Nigel Bruce в ролята на Dr. Watson
Ida Lupino в ролята на Ann Brandon
Alan Marshal в ролята на Jerrold Hunter
Terry Kilburn в ролята на Billy
George Zucco в ролята на Professor Moriarty
Henry Stephenson в ролята на Sir Ronald Ramsgate
E.E. Clive в ролята на Inspector Bristol
Arthur Hohl в ролята на Henchman Bassick
May Beatty в ролята на Mrs. Jameson, Brandon Housekeeper
Peter Willes в ролята на Lloyd Brandon
Frank Dawson в ролята на Dawes, Moriarty's servant
Mary Gordon в ролята на Mrs. Hudson
Holmes Herbert в ролята на Justice of the Court
George Regas в ролята на Henchman Mateo
Anthony Kemble-Cooper в ролята на Tony Conyngham (as Anthony Kemble Cooper)
Mary Forbes в ролята на Lady Conyngham
Leonard Mudie в ролята на Barrows - Moriarty's Attorney (uncredited)
Robert Nobel в ролята на Foreman of the Jury (uncredited)
Ivan F. Simpson в ролята на Gates - Trial Prosecutor (uncredited)
Neil Fitzgerald в ролята на Clerk of the Court (uncredited)
Frank Baker в ролята на Tompkins (uncredited)
Denis Greene в ролята на Denis Green (uncredited)
Robert Cory в ролята на Tower Sentry (uncredited)
Gordon Hart в ролята на Guard (uncredited)
Keith Hitchcock в ролята на Constable (uncredited)
Ivo Henderson в ролята на Bobby (uncredited)
Leyland Hodgson в ролята на Bobby (uncredited)
Boyd Irwin в ролята на Bobby (uncredited)
Charles Irwin в ролята на Marine Sergeant (uncredited)
Robert R. Stephenson в ролята на Cabby (uncredited)
Harry Cording в ролята на Second Fake Constable (uncredited)
Eric Wilton в ролята на Conyngham Butler (uncredited)
William Austin в ролята на Inquisitive Stranger
Frank Benson в ролята на Cockney (uncredited)
Ted Billings в ролята на Pub Customer (uncredited)
