Xander Berkeley

Xander Berkeley, born December 16, 1955, is a versatile American actor whose television roles include the stern Sheriff Thomas McAllister on "The Mentalist," the enigmatic George Mason on "24," and the ruthless Percy Rose on "Nikita." His screen presence is equally commanding in films like "Terminator 2: Judgment Day," where he plays the volatile Todd Voight, and "Air Force One," as the steely Agent Gibbs. From the gritty Bowery Snax in "Sid and Nancy" to the cerebral Dr. Lamar in "Gattaca," Berkeley's performances range widely, embodying characters with authority and menace in a career that spans both small and big screens.