Robert Hammond Patrick, Jr. (born November 5, 1958) is an American actor, known for his leading and supporting roles in a number of films and for his work in the science fiction genre, and is a Saturn Award winner. In 1990, he landed a supporting role as terrorist O'Reilly in Die Hard 2. In 1991, he found greater mainstream recognition when he landed the role of the main villain, the T-1000, in Terminator 2: Judgment Day. Other films include Wayne's World, Last Action Hero, Fire in the Sky, Cop Land, The Faculty, Walk the Line, We Are Marshall, Bridge to Terabithia, Spy Kids, and Flags of Our Fathers. He also starred in such television shows as The Sopranos, The Outer Limits, The X-Files, Last Resort and From Dusk Till Dawn: The Series.