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Xander Berkeley
Acting
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.
Known For
Bones
2005
Law & Order
1990
The Mentalist
2008
CSI: Crime Scene Investigation
2000
Criminal Minds
2005
The X-Files
1993
24
2001
Boston Legal
2004
The Walking Dead
2010
Law & Order: Criminal Intent
2001
ER
1994
The West Wing
1999
Supergirl
2015
The Closer
2005
Medium
2005
M*A*S*H
1972
Miami Vice
1984
Falcon Crest
1981
The A-Team
1983
The A-Team
1983
Bull
2016
The Mandalorian
2019
FBI: Most Wanted
2020
Longmire
2012
MacGyver
2016
Justified
2010
The Outer Limits
1995
The Twilight Zone
1985
Nash Bridges
1996
The Batman
2004