Brian Doyle-Murray, eldest brother of the Murray family (including actors Bill and Joel), got his start at Second City Chicago. Doyle-Murray co-wrote the hit comedy Caddyshack, in which he played Lou Loomis. He has also appeared with brother Bill in Groundhog Day as the mayor of Punxsutawney, PA. Doyle-Murray played Jack Ruby in JFK and countless other roles in film and TV. Unlike his brothers, Doyle-Murray hyphenates his name because there is another actor with the name Brian Murray.