George Ridgwell
Director
Eille Norwood
Sherlock Holmes
Hubert Willis
Dr. John Watson
Maresco Marisini
Gorgiano
Teddy Arundell
Insp. Stanley Hopkins
Mme. d'Esterre
Mrs. Hudson
Tom Beaumont
Leverton
Sybil Archdale
Amelia Lucca
Bertram Burleigh
Gennaro Lucca
Esme Hubbard
Mrs. Warren