Stephen Roy Lang (born July 11, 1952) is an American movie, television, voice, and stage actor. He is known for his roles as Stonewall Jackson in "Gods and Generals", George Pickett in "Gettysburg", Colonel Miles Quaritch in "Avatar", Charles Winstead in "Public Enemies", Khalar Zym in "Conan the Barbarian", and as Commander Nathaniel Taylor in "Terra Nova". 