Alexander "Xander" Harper Berkeley (born December 16, 1955) is an American actor. He is best known for his television roles of
George Mason on the political thriller series
24, Percy Rose on the action thriller series
Nikita and
Sheriff Thomas McAllister on the crime drama
The Mentalist. In films, he is known for having portrayed a wide range of supporting and character roles in
The Fabulous Baker Boys,
Terminator 2: Judgment Day,
Candyman,
Apollo 13,
Gattaca,
Taken,
Safe,
Kick-Ass,
Air Force One,
Shanghai Noon,
If These Walls Could Talk,
Five, and
Sid and Nancy.