Gregory Walcott (January 13, 1928 – March 20, 2015) was an American television and film actor. Although he had roles in many successful Hollywood films and television series, he is perhaps best known for having appeared in the 1994 film Ed Wood and Wood's cult classic Plan 9 from Outer Space from 1959.
Born Bernard Mattox in Wendell, North Carolina, Walcott was raised in Wilson, North Carolina. Walcott served in the United States Army towards the end of World War II and the Korean War. While serving in the United States Army, he appeared as a drill instructor in the film Battle Cry (1955), then as a military policeman in 1955's war-themed classic Mister Roberts with Henry Fonda, as the drill instructor with Tony Curtis in The Outsider (1961), and later Midway (1976) as Capt. Elliott Buckmaster.
He would appear in a number of western films, beginning with an uncredited role in Red Skies of Montana (1952) opposite Richard Widmark, then later more prominently as a gunslinger who tries to romance Claudette Colbert in 1955's Texas Lady.