Canada's John Colicos (1928 -2000) is perhaps better known to younger audiences as Klingon Commander Kor in "Star Trek" or Count Baltar in "Battlestar Gallectica". Yet, John Colicos has also played Sherlock Holmes, Inspector Lestrade, and Professor Moriarty.
In an 1989 episode of "Alfred Hitchcock Presents" titled "My Dear Watson'', Colicos would play both Lestrade and Moriarty, with Briand Bedford as Holmes and Patrick Monckton as Dr. Watson.