George Ridgwell
Director
Geoffrey Malins
Writer
Arthur Conan Doyle
Novel
P.L. Mannock
Writer
Eille Norwood
Sherlock Holmes
Hubert Willis
Dr. John Watson
Mme. d'Esterre
Mrs. Hudson
Lewis Gilbert
Dr. Grimesby Roylott
Cynthia Murtagh
Helen Stoner
Henry Wilson
The Baboon