Billy Armstrong: Billy Armstrong. Actor: Magnum P.I.. Billy Armstrong was born in Baton Rouge, Louisiana and raised in Texas. He attended The University of Mississippi where he was involved in theatre as well as played Linebacker/Defensive End for the Ole Miss Football Team. After graduating with a degree in business and working for several years in the corporate world, Billy decided to follow his passion for acting and moved to Los Angeles....
Known For: Magnum P.I. (Stan Peters), Match Me If You Can (Dirk Detamore), Chaos on the Farm (Sam), Nashville (Mark)