Douglas Osborne "Doug" McClure was an American actor whose career in film and television extended from the 1950s to the 1990s. Born in Glendale, California, to Donald Reed McClure and the former Clara Clapp, he is best known for his appearances as Trampas in the NBC western series The Virginian.
McClure's The Virginian co-stars were James Drury, Roberta Shore, Lee J. Cobb, Randy Boone, Gary Clarke, and Tim Matheson in the later seasons. Before The Virginian, McClure costarred in two other series: as Frank "Flip" Flippen on NBC's western, Overland Trail, with co-star William Bendix, and as Jed Sills on the CBS detective series Checkmate opposite Anthony George as Don Corey and Sebastian Cabot as Dr. Carl Hyatt. In 1958 and 1959, McClure appeared in three episodes of the syndicated western series 26 Men, stories of the Arizona Rangers. He appeared as Adam Davis in 1959 in the episode "The Court Martial of Trooper Davis" of the syndicated series Mackenzie's Raiders starring Richard Carlson. He was in the third episode of The Twilight Zone, "Mr. Denton on Doomsday".
He starred in science fiction films such as At the Earth's Core, The Land That Time Forgot and The People That Time Forgot, all three based on the novels of Edgar Rice Burroughs. In 1967, he played the Errol Flynn role in a re-make of Against All Flags titled The King's Pirate. He played the lead in two World War II adventures, The Longest Hundred Miles and The Birdmen, set in the Philippines and at Colditz Castle respectively.
He co-starred on the sitcom Out of This World later in his career.