His representative, Mike Baronas, says Lynch was found dead Tuesday at his home in Palm Springs, California. No other details were provided.
The actor appeared in several horror and sci-fi films in a career spanning four decades. He recently played serial killer Michael Myers' principal in director Rob Zombie's "Halloween" remake in 2007. His most recent role is in Zombie's upcoming film "The Lords of Salem." Other movies included "Scarecrow" and "Little Nikita." He appeared in such TV series as "Battlestar Galactica," ''The A-Team" and "Six Feet Under."
Lynch reportedly suffered scarring in 1967 after accidentally setting himself on fire.