Parker Stevenson (born Richard Stevenson Parker, Jr on June 4, 1952) is an American television and film actor.
His first notable screen appearance was a starring role in the 1972 movie A Separate Peace. After graduating from Rye Country Day School, Brooks School, and Princeton University, he moved to Hollywood, where he landed a role opposite Sam Elliott in the film Lifeguard.
Stevenson became well-known from starring with teen heartthrob Shaun Cassidy in the The Hardy Boys/Nancy Drew Mysteries series, which ran 1977–79 on ABC-TV. In 1983, he co-starred in the hit movie Stroker Ace as Burt Reynolds's brash race-car driving arch-nemesis Aubrey James.
In 1986, Stevenson starred as Billy Hazard in Book II of the television miniseries North and South. He co-starred with his then wife Kirstie Alley, who portrayed his sister, Virgilia Hazard. He then starred on the short-lived TV series Probe in 1988. He was part of the original cast of Baywatch in the 1989 season, returning for the syndicated 1997 and 1998 seasons. He also had a recurring role as a computer tycoon on Melrose Place during the second season. In 1998, he starred in the film Legion.