Elenco - The Masks of Death
Peter Cushing
Sherlock Holmes
John Mills
Dr. John H. Watson / Narrator
Anne Baxter
Irene Adler / Mrs. Norton
Ray Milland
Home Secretary
Anton Diffring
Graf Udo Von Felseck
Gordon Jackson
Inspector Alec MacDonald
Marcus Gilbert
Anton Von Felseck
Susan Penhaligon
Miss Derwent
Jenny Laird
Mrs. Hudson
Russell Hunter
Alfred Coombs
James Cossins
Frederick Bains
Eric Dodson
Lord Claremont
Georgina Coombs
Lady ClaremontJames Head
Chauffeur