George Ridgwell
Director
Geoffrey Malins
Writer
Arthur Conan Doyle
Novel
P.L. Mannock
Writer
Eille Norwood
Sherlock Holmes
Hubert Willis
Dr. John Watson
Sam Austin
Silas Brown
Tom Beaumont
Insp. Gregory
Knighton Small
Col. Ross
Norma Whalley
Mrs. Straker
Sam Marsh
Straker
Bert Barclay
Groom