Adaptation

The Masks of Death

This TV Film was aired on 23 December 1984, by Tyburn Film.
IMDb: The Masks of Death (link not verified)
Letterboxd: The Masks of Death (link not verified)

Sherlock Holmes played by: Peter Cushing
Dr. Watson played by: John Mills

Turn on <canvas>.
Cast
Peter Cushing as Sherlock Holmes
John Mills as Dr. John H. Watson
Anne Baxter as Irene Adler
Jenny Laird as Mrs. Hudson
Gordon Jackson as Insp. Alec MacDonald
James Cossins as Frederick Baines
Dominic Murphy as Boot Boy
James Head as Chauffeur
Eric Dodson as Lord Claremont
Georgina Coombs as Lady Claremont
Russell Hunter as Alfred Coombs
Susan Penhaligon as Miss Derwent
Marcus Gilbert as Anton von Felseck
Anton Diffring as Graf Udo von Felseck
Ray Milland as Home Secretary