Also known as: Alexander Harper Berkeley , Xander Berkely , Xander Berkley, Ксандер Беркли...
Born in Brooklyn, New York City, New York, USA
1955-12-16 (age 70)
Alexander Harper Berkeley (born December 16, 1955) is an American actor. He is known for his television roles as Sheriff Thomas McAllister on the crime drama The Mentalist, George Mason on the political thriller series 24, Percy Rose on the action thriller series Nikita, the Man on The Booth At The End and Gregory in AMC's The Walking Dead. His notable film roles include Todd Voight in Terminator 2: Judgment Day, Agent Gibbs in Air Force One, Bowery Snax in Sid and Nancy, Dr. Lamar in Gattaca, Trevor Lyle in Candyman and Ralph in Heat.
From Wikipedia
Alexander Harper Berkeley (born December 16, 1955) is an American actor. Since beginning his career in the early 1980s, he has appeared in over 200 film and television projects. His films include Terminator 2: Judgment Day (1991), Candyman (1992), Apollo 13, Barb Wire (1996), Air Force One (1997), Gattaca (1997), and Shanghai Noon (2000). He also appeared in the crime dramas L.A. Takedown (1989) and its remake Heat (1995), although he played a different character in each film. On television, he headlined the Citytv psychological thriller The Booth at the End (2010–2012) and was a series regular on the Fox action drama 24 (2001–2003) and The CW action thriller Nikita (2010–2012). As a guest star, Berkeley portrayed Sheriff Thomas McAllister on the CBS drama The Mentalist (2008–2013) and Gregory on the AMC post-apocalyptic horror The Walking Dead (2016–2018).