John Warner
From The Arthur Conan Doyle Encyclopedia

John Warner (1 january 1924 - 19 may 2001) was a British actor who played Peter Giles in 1988 in the movie Without a Clue with Michael Caine as Sherlock Holmes.
He also played Mr. Piercy in 1971 in episode The Ripening Rubies of the TV series The Rivals of Sherlock Holmes.
Cinema
- 1988 : Without a Clue (as Peter Giles)
TV
- 1971 : The Rivals of Sherlock Holmes: The Ripening Rubies (as Mr. Piercy)