<Li> Emilio Estevez as Kirby "Kirbo" Keager, a law student and waiter at St. Elmo's Bar . </Li> <Li> Rob Lowe as Billy Hicks, a saxophonist "frat boy" and reluctant husband and father . </Li> <Li> Andrew McCarthy as Kevin Dolenz, a writer for The Washington Post with a sullen streak, and Kirby's roommate . </Li> <Li> Demi Moore as Julianna "Jules" Van Patten, an international banker and the "party girl" of the group . </Li>

Who plays rob lowe's wife in st elmo's fire