Already a household name as a member of Saturday Night Live’s original cast and for a previous collaboration with Ramis in Caddyshack, Chevy Chase became a bona fide 1980s comedy phenomenon as Clark Griswold, a warmhearted dad and well-meaning, bumbling fool determined to get his family to their fun, ill-fated vacation at Walley World amusement park, come hell or high water. This box-office hit, which John Hughes adapted from his short story Vacation ’58 (published in National Lampoon magazine), spawned multiple sequels.