Acting
December 16, 1955 (age 71)
Brooklyn, New York City, New York, USA
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.
as Clay Pollack
as Dr. Bancroft
as Rory Atwater
as Sheriff Thomas McAllister
as Det. Hyde
as Dr. Hodge
as George Mason
as Gregory
as Franklin Hollis
as Detective Curt Landry