John Pleshette (born July 27, 1942) is an American actor and screenwriter, best known for his role as Richard Avery on the television drama Knots Landing, and for portraying Lee Harvey Oswald in the TV movie The Trial of Lee Harvey Oswald. Pleshette also wrote several scripts for Knots Landing in the 1980s.
Pleshette played Lee Harvey Oswald in the television film The Trial of Lee Harvey Oswald (1977). In 1979, he was cast in the role of Richard Avery on Knots Landing. Series creator David Jacobs was acquainted with Pleshette's work, and Pleshette was married to literary agent Lynn Pleshette, Jacobs' ex-wife. Pleshette appeared on Knots Landing for four seasons (1979-83), and returned briefly in 1987. During the 1980s, he wrote several scripts for the series.