Ronald Lee Ermey (born March 24, 1944-April 15, 2018) was an American actor, best known for his role as the austere Gunnery Sergeant Hartman in Full Metal Jacket, which earned him a Golden Globe Award nomination for Best Supporting Actor. He was a retired U.S. Marine and an honorary Gunnery Sergeant; during his tenure in the U.S. Marine Corps, he served as a drill instructor.
