Robert Hammond Patrick (born November 5, 1958) is an American actor. Known for portraying villains and honorable authority figures, he is a Saturn Award winner with four other nominations. Patrick dropped out of college when drama class sparked his interest in acting, and entered film in 1986. After playing a supporting role in Die Hard 2 (1990), he came to prominence as the T-1000, the antagonist of Terminator 2: Judgment Day (1991)—a role he reprised for cameo appearances in Wayne's World (1992) and Last Action Hero (1993). His other film credits include Fire in the Sky (1993), Striptease (1996), Cop Land (1997), The Faculty (1998), Spy Kids (2001), Charlie's Angels: Full Throttle (2003), Ladder 49 (2004), Walk the Line (2005), Flags of Our Fathers (2006), We Are Marshall (2006), Bridge to Terabithia (2007), The Men Who Stare at Goats (2009), and Safe House (2012). In television, Patrick played FBI Special Agent John Doggett in The X-Files, Colonel Tom Ryan in The Unit, and DHS agent Cabe Gallo in Scorpion. He has played ongoing roles in series such as The Outer Limits, The Sopranos, Elvis, Avatar: The Last Airbender, Burn Notice, Last Resort, Sons of Anarchy, its spin-off Mayans M.C., and From Dusk Till Dawn: The Series. Described by The Guardian as a character actor, AllMovie journalist Tracie Cooper wrote that, by the conclusion of The X-Files in 2002, Patrick had developed a "solid reputation within the industry", with critics, fans and co-stars alike praising his "work ethic, personality, and consistent performances." Actor and director Jason Bateman described Patrick as "one of the great heavies.