70 mins | Mystery, TV Movie | Dec. 27, 1974
70 mins | Mystery, TV Movie | Dec. 27, 1974
| Producers | BBC |
| Original title | Dr. Watson and the Darkwater Hall Mystery |
| Directors | James Cellan Jones |
| Writers | Kingsley Amis, Arthur Conan Doyle |
as Dr. Watson
as Emily
as Sir Harry
as Miles
as Bradshaw
as Carlos
as Dolores
as Black Paul
as Black Paul's Woman
as Mrs. Hudson
as Haddocks