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

George Ridgwell