Biography
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.
TV credits
Rated 7.4 out of 10
Star Wars: Tales of the Empire
2024
Rated 9.0 out of 10
Dead Talk Live
2020
Rated 7.6 out of 10
FBI: Most Wanted
2020
Rated 7.0 out of 10
Truth Be Told
2019
Rated 8.4 out of 10
The Mandalorian
2019
Rated 7.3 out of 10
MacGyver
2016
Rated 7.0 out of 10
Bull
2016
Rated 7.3 out of 10
Supergirl
2015
Rated 6.8 out of 10
Zoo
2015
Rated 7.4 out of 10
12 Monkeys
2015
Rated 7.3 out of 10
Salem
2014
Rated 7.2 out of 10
Beware the Batman
2013
Rated 7.7 out of 10
Longmire
2012
Rated 7.7 out of 10
The Booth at the End
2011
Rated 7.0 out of 10
Being Human
2011
Rated 8.1 out of 10
The Walking Dead
2010
Rated 7.3 out of 10
Nikita
2010
Rated 8.2 out of 10
Ben 10: Ultimate Alien
2010
Rated 8.0 out of 10
Justified
2010
Rated 7.6 out of 10
Batman: The Brave and the Bold
2008
Rated 8.4 out of 10
The Mentalist
2008
Rated 7.4 out of 10
Jericho
2006
Rated 8.3 out of 10
Criminal Minds
2005
Rated 8.2 out of 10
Bones
2005