matthew ryan phillippe (born september 10, 1974) is an american actor. he played billy douglas in the soap opera "one life to live". he later became famous in the late 1990s with starring roles in the movies "i know what you did last summer" (1997), "54" (1998) and "cruel intentions" (1999). after 2000, he appeared in many movies, including "gosford park" (2001), "crash" (2004), "flags of our fathers" (2006), "breach" (2007), "stop-loss" (2008), "macgruber" (2010), "the bang-bang club" (2010) and "the lincoln lawyer" (2011). he starred as bob lee swagger in the lead role of the usa network thriller drama "shooter" (2016–2018).