Guy Harry Stockwell (November 16, 1934 – February 6, 2002) was an American actor who appeared in nearly 30 movies and 250 television series episodes.

Stockwell was born in Hollywood, California, the son of Nina Olivette (née Elizabeth Margaret Veronica), an actress and dancer, and Harry Bayless Stockwell, or Harry Stockwell, an actor and singer. The older brother of Dean Stockwell, he had roles in many television shows, including Simon & Simon, Knight Rider, Tales of the Gold Monkey, Magnum, P.I., Murder, She Wrote, Columbo, Quantum Leap, Bonanza, Tombstone Territory, Combat! The Richard Boone Show, and Return to Peyton Place, He also had important roles in several major motion pictures including The War Lord (1965), Blindfold (1965), Beau Geste (1966) and Tobruk (1967).

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