Arthur Wontner
Sherlock Holmes
Acting
Lyn Harding
Prof. Moriarty
Acting
Leslie Perrins
John Douglas
Acting
Ian Fleming
Dr. John Watson
Acting
Charles Mortimer
Insp. Lestrade
Acting
Minnie Rayner
Mrs. Hudson
Acting
Michael Shepley
Cecil Barker
Acting
Jane Carr
Ettie Douglas
Acting
Ben Welden
Ted Balding
Acting
Roy Emerton
Boss McGinty
Acting
Wilfrid Caithness
Col. Sebastian Moran
Acting
Conway Dixon
Ames
Acting
Edmund D'Alby
Captain Marvin
Acting
Ernest Lynds
Jacob Shafter
Acting
George Spence
Scowrer (uncredited)
Acting