From The Arthur Conan Doyle Encyclopedia
He also played Dr. O. Henry in 1998 in episode The Case of the Celestial signal of the TV series The Adventures of Shirley Holmes, Detective with Meredith Henderson as Shirley Holmes (the great grand niece of Sherlock Holmes).
- 1965 : A Study in Terror (as Sherlock Holmes)
- 1970 : The Adventures of Gerard (as Duke of Wellington)
- 1971 : The Rivals of Sherlock Holmes: A Message from the Deep Sea (as Dr. Thorndyke)
- 1998 : The Adventures of Shirley Holmes, Detective (as Dr. O. Henry)
- 1975 : Sherlock Holmes (as Sherlock Holmes)
- 1978 : The Incredible Murder of Cardinal Tosca (as Sherlock Holmes)