George Ridgwell
Director
Geoffrey Malins
Writer
Arthur Conan Doyle
Novel
Patrick L. Mannock
Writer
Eille Norwood
Sherlock Holmes
Hubert Willis
Dr. John Watson
Malcolm Tod
Cadogan West
Lewis Gilbert
Mycroft Holmes
Teddy Arundell
Insp. Stanley Hopkins
Leslie Brittain
Sidney Johnson
Edward Sorley
Hugh Oberstein
Ronald Power
Col. Valentine Walter