Arthur Wontner

Sherlock Holmes

Ian Fleming

Dr. John Watson

Minnie Rayner

Mrs. Hudson

Leslie Perrins

Ronald Adair

Jane Welsh

Kathleen Adair

Norman McKinnel

Prof. Robert Moriarty / Col. Henslowe

William Fazan

Thomas Fisher

Sydney King

Tony Rutherford

Philip Hewland

Inspector Lestrade

Gordon Begg

Marston, the butler

Louis Goodrich

Colonel Sebastian Moran

Harry Terry

No. 16

Charles Paton

J.J. Godfrey

Leslie S. Hiscott