John Pleshette (born July 27, 1942) is an American actor best known for being an original cast member of the long-running prime time television drama Knots Landing and portraying Lee Harvey Oswald.
Pleshette was cast in the role of Richard Avery because Knots Landing creator David Jacobs was acquainted with Pleshette's work and because Pleshette was the husband of Jacobs' ex-wife's literary agent Lynn Pleshette. Pleshette bears a strong resemblance to Lee Harvey Oswald and played him in the television film The Trial of Lee Harvey Oswald (1977). Pleshette also appeared in the Blake Edwards comedy S.O.B., and Micki and Maude. He appeared in the episode 'The Judas Bug" of the ABC crime drama The Feather and Father Gang in 1977, and in MacGyver in the Season Two episode "D.O.A.: MacGyver".
Pleshette is the cousin of the late actress Suzanne Pleshette. He is a 1964 graduate of Brown University.