Gary Warren (born 5 July 1954 in Cricklewood, London) is a British former child actor, best remembered for his role as Peter in the 1970 film The Railway Children. He also played Owl Face in the TV series Catweazle (1971) and Taplow (the troublemaking pupil) in Whacko, and appeared in the sitcom Alexander the Greatest (1971) and played Mame's son in the West End musical Mame starring Ginger Rogers.
In 1970, he released a single musical recording with two songs: "Lucky Guy" and "Jennifer Please".
- 1973 Armchair Theatre (TV series): Brussels Sprouts-Boy Scouts
- 1972 Whack-O! (TV series)
- 1972 The Shadow of the Tower (TV series)
- 1971-1972 Alexander the Greatest (Title Role)
- 1970-1971 Catweazle (TV series)
- 1970 The Railway Children
- 1967 The Ragged Trousered Philanthropists (TV movie)
- 1967 Z-Cars (TV series)
- "45cat - Gary Warren". 45cat. Retrieved June 10, 2013.