Early Career
Harold is first known as a writer in National Lampoon's Animal House. Harold directed the National Lampoon's Vacation in 1983, starring Chevy Chase and Beverly D'Angelo. Harold's daughter Violet Ramis had a minor role in the movie. As Randy Quaid/Eddie Johnson's daughter in the movie Daisy Mable Johnson.
Film Roles
Harold is best known for his work on Meatballs, Caddyshack, Year One, Ghostbusters, Groundhog Day, etc.