Although he was already 40 by the time he made his film debut in the cult Troma Studios action horror film "The Toxic Avenger", Patrick Kilpatrick wasted no time in becoming a dependable on-screen villain and accomplished stuntman. He portrayed a drunken Army corporal who almost causes World War III in the espionage thriller "Russkies", and he landed a recurring role as a CIA agent on "Tour of Duty", about the day-to-day life of an American army platoon serving in Vietnam. In 1990, he was cast in the sci-fi thriller "Class of 1999" as Mr. Bryles, a weaponized android who teaches at a dangerous and violent high school--his death-by-forklift scene remains a fan favorite. That same year, he appeared as maniacal criminal Sandman in the Jean-Claude Van Damme action drama "Death Warrant", about a secret government plan to harvest prison inmate organs; the success of the film led Kilpatrick to more prominent roles in films like "Showdown", starring martial arts master Billy Blanks, and the TV mini-series "The Stand", based on the post-apocalyptic Stephen King novel about a plague that sweeps over the world. In 1996, Kilpatrick was cast as a gruff sergeant on the prime-time western series "Dr. Quinn, Medicine Woman" and has since appeared on the sci-fi drama "Star Trek: Voyager" and the procedural "CSI: Miami". In 2009, he produced and starred in "Never Surrender", which featured numerous mixed martials arts champions battling for supremacy in an underground fighting ring.