Actor Mick Foley may be best known as his alter ego, WWF wrestler Mankind. Foley discovered his passion for wrestling as a college student when a hitchhiking adventure to New York City led him to a match between Jimmy Snuka and Don Muraco. From there, his mind was made up--he would be a pro wrestler. After training under Dominic DeNucci, Foley broke onto the scene in the 1980s, making his television debut on the "WWF Challenge" on September 21, 1986. From there he became a popular figure in the sport, engaging in a fearsome feud with fellow wrestler the Undertaker, which led to the memorable moment in "King of the Ring" when the Undertaker hurled Mankind from the top of a two-story cage and through a table. Such grandiose violence made the madcap Mankind a pro-wrestling icon, but Foley retired from the ring at "WrestleMania" in 2000. He has since branched out into more traditional forms of acting, including voice work, a career path that began with adding his vocals to some WWF video games. His most memorable non-Mankind role to date might well be as the Boulder, a fearsome pro wrestler on the children's animated adventure series "Avatar: The Last Airbender."