who played drill sergeant in full metal jacket
R. Lee Ermey Ronald Lee Ermey (March 24, 1944 – April 15, 2018) was an American actor, voice actor, and Marine. He achieved fame when he played Gunnery Sergeant Hartman in the 1987 film Full Metal Jacket, which earned him a Golden Globe Award nomination for Best Supporting Actor. Ermey was also a United States Marine Corps staff sergeant and an honorary gunnery sergeant. During his tenure in the U.S. Marine Corps, he served as a drill instructor.