American actor/writer Brian Doyle-Murray began his professional performing career at Chicago's Second City comedy troupe. Once established, Brian was instrumental in bringing his younger brother Bill into Second City. While Bill Murray's star ascended, Brian stayed busy as a writer and comic character actor. He co-wrote the 1980 comedy hit Caddyshack and had choice supporting roles in such films as Modern Problems (1981), Club Paradise (1986) and National Lampoon's Christmas Vacation (1989). Brian has also appeared to excellent effect in several of his brother Bill's starring features, most recently in the hilarious role of the lugubrious mayor of Punxsutawney in Groundhog Day (1993). One of the staff writers of the earliest years of Saturday Night Live, Brian Doyle-Murray has remained active on television as a guest actor, as a regular on the 1991 sitcom Good Sports, and in such made for TV movies as Babe Ruth (1991).