Eille Norwood

Sherlock Holmes

Hubert Willis

Dr. John Watson

Lawford Davidson

Sir Eustace Brackenstall

Madeline Seymour

Lady Mary Brackenstall

Leslie Stiles

Cpt. Jack Croker

Teddy Arundell

Insp. Stanley Hopkins

Mme. d'Esterre

Mrs. Hudson

Madge Tree

Theresa Wright

George Ridgwell