Warren Frost (June 5, 1925 – February 17, 2017) was an American actor. His work was mainly in theater, but he worked in films and television sporadically from 1958. He is known for television roles on Matlock and Seinfeld, and particularly as Doctor Hayward on Twin Peaks, a series co-created by his son Mark Frost. He has also appeared in television movies, such as Psycho IV: The Beginning (1990) and The Stand (1994).