From The Arthur Conan Doyle Encyclopedia
Peter O'Toole (born 2 august 1932) is an Irish producer and actor who played the role of Sherlock Holmes on stage and TV and Conan Doyle on cinema.
In 1976, he played Sherlock Holmes on stage in the Peter King's play: Dead Eyed Dicks  with John Standing in the role of Dr. Watson. Play in 3 acts in which Peter O'Toole played successively Lord Peter Wimsey, Sherlock Holmes and Philip Marlowe.
The more remarkable in the career of Peter O'Toole, from a sherlockian perspective, are the films in which he should have played the role of Sherlock Holmes. In 1970, Billy Wilder had thought to entrust him the lead role in The Private Life of Sherlock Holmes, alongside a Watson played by Peter Sellers. But he chose the lesser known actors (Robert Stephens and Colin Blakely). In 1979, a new opportunity occured with the filming of Murder by Decree. Bob Clark think Peter O'Toole could play Holmes with Laurence Olivier as Watson, but the two actors could not get along since a few years so it was Christopher Plummer who played Sherlock Holmes.
- 1984 : Valley of Fear (as the voice of Sherlock Holmes)
- 1984 : A Study in Scarlet (as the voice of Sherlock Holmes)
- 1983 : The Baskerville Curse (as the voice of Sherlock Holmes)
- 1983 : The Sign of Four (as the voice of Sherlock Holmes)