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.
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Organization | Category | Movie |
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Nikita
as Percy Rose
Episodes: 45
First Aired: Sep 09, 2010
24
as George Mason
Episodes: 27
First Aired: Nov 06, 2001
The Walking Dead
as Gregory
Episodes: 15
First Aired: Oct 31, 2010
Salem
as Magistrat Hale
Episodes: 13
First Aired: Apr 20, 2014
The Booth at the End
as The Man
Episodes: 10
First Aired: Jul 11, 2011
Truth Be Told
as Lee Hackman
Episodes: 7
First Aired: Dec 06, 2019
CSI: Crime Scene Investigation
as Rory Atwater
Episodes: 5
First Aired: Oct 06, 2000
The Mentalist
as Sheriff Thomas McAllister
Episodes: 5
First Aired: Sep 23, 2008
Being Human
as Liam McClean
Episodes: 5
First Aired: Jan 17, 2011
Zoo
as Ronnie 'Dogstick' Brannigan
Episodes: 4
First Aired: Jun 30, 2015
12 Monkeys
as Jonathan Foster
Episodes: 3
First Aired: Jan 16, 2015
Being Human
as Liam McLean
Episodes: 3
First Aired: Jan 17, 2011
Batman Beyond
as Dr. Childes (voice)
Episodes: 2
First Aired: Jan 10, 1999
Teen Titans
as Mento / General Immortus (voice)
Episodes: 2
First Aired: Jul 19, 2003
Netforce
as Bo Tyler
Episodes: 2
First Aired: Feb 01, 1999
Justified
as Charles Monroe
Episodes: 2
First Aired: Mar 16, 2010
Longmire
as Jeremiah Rains
Episodes: 2
First Aired: Jun 03, 2012
Medium
as Mitchell Slocombe
Episodes: 1
First Aired: Jan 03, 2005
Nash Bridges
as Neil Wojak
Episodes: 1
First Aired: Mar 29, 1996
Falcon Crest
as Buzz Whitehead
Episodes: 1
First Aired: Dec 04, 1981
M*A*S*H
as Marine
Episodes: 1
First Aired: Sep 17, 1972
Law & Order
as Clay Pollack
Episodes: 1
First Aired: Sep 13, 1990
Remington Steele
as Dan Kowalski
Episodes: 1
First Aired: Oct 01, 1982
Jericho
as John Smith (uncredited)
Episodes: 1
First Aired: Sep 20, 2006
The Adventures of Brisco County, Jr.
as Brett Bones
Episodes: 1
First Aired: Aug 27, 1993
The A-Team
as Baker
Episodes: 1
First Aired: Jan 23, 1983
The Batman
as Paul (voice)
Episodes: 1
First Aired: Sep 11, 2004
Bones
as Dr. Bancroft
Episodes: 1
First Aired: Sep 13, 2005
The Wild Thornberrys
as Barking Deer #2 (voice)
Episodes: 1
First Aired: Sep 01, 1998
Moonlighting
as Scalper
Episodes: 1
First Aired: Mar 03, 1985
Criminal Minds
as Det. Hyde
Episodes: 1
First Aired: Sep 22, 2005
The X-Files
as Dr. Hodge
Episodes: 1
First Aired: Sep 10, 1993
Superman: The Animated Series
as Sgt. Corey Mills (voice)
Episodes: 1
First Aired: Sep 06, 1996
Law & Order: Criminal Intent
as George Pagolis
Episodes: 1
First Aired: Sep 30, 2001
ER
as Detective Wilson
Episodes: 1
First Aired: Sep 19, 1994
Boston Legal
as A.D.A. Rex Swarthmore
Episodes: 1
First Aired: Oct 03, 2004
The Outer Limits
as Terry McCammon
Episodes: 1
First Aired: Mar 26, 1995
The Mandalorian
as Gilad Pellaeon
Episodes: 1
First Aired: Nov 12, 2019
The Twilight Zone
as Harry Kellogg
Episodes: 1
First Aired: Sep 18, 2002
Justice League
as General Brak / Soldier (voice)
Episodes: 1
First Aired: Nov 17, 2001
Justice League
as General Brak / Dignitary / Soldier (voice)
Episodes: 1
First Aired: Nov 17, 2001
The Wild Thornberrys
as Stoat (voice)
Episodes: 1
First Aired: Sep 01, 1998
Jericho
as John Smith (voice)
Episodes: 1
First Aired: Sep 20, 2006
The West Wing
as Franklin Hollis
Episodes: 1
First Aired: Sep 22, 1999
Ben 10: Ultimate Alien
as Warden Morgg / Trukk (voice)
Episodes: 1
First Aired: Apr 23, 2010
Bull
as Judge Hollingsworth
Episodes: 1
First Aired: Sep 20, 2016
The Tick
as Octopaganini (voice)
Episodes: 1
First Aired: Sep 10, 1994
The Legend of Calamity Jane
as Additional Voices (voice)
Episodes: 1
First Aired: Sep 14, 1997
Women: Stories of Passion
as Jimbo
Episodes: 1
First Aired: Aug 31, 1996
The A-Team
as Sergeant Wilson
Episodes: 1
First Aired: Jan 23, 1983
Supergirl
as Peter Lockwood
Episodes: 1
First Aired: Oct 26, 2015
Wolf Lake
as Carl
Episodes: 1
First Aired: Sep 19, 2001
Star Wars: Tales of the Empire
as Gilad Pellaeon (voice)
Episodes: 1
First Aired: May 04, 2024
MacGyver
as General John Acosta
Episodes: 1
First Aired: Sep 23, 2016
Going to California
as Clay Shelton
Episodes: 1
First Aired: Aug 09, 2001
Good Advice
as Bernard
Episodes: 1
First Aired: Apr 02, 1993
The Closer
as Detective Curt Landry
Episodes: 1
First Aired: Jun 13, 2005
Teen Titans
as Warp (voice)
Episodes: 1
First Aired: Jul 19, 2003
FBI: Most Wanted
as Maurice Hewitt
Episodes: 1
First Aired: Jan 07, 2020
Grand
as Jeffrey
Episodes: 1
First Aired: Jan 18, 1990
Batman: The Brave and the Bold
as Sinestro (voice)
Episodes: 1
First Aired: Nov 14, 2008
Beware the Batman
as Manhunter / Paul Kirk (voice)
Episodes: 1
First Aired: Jul 13, 2013
24
as Voice of the Handler
Episodes: 1
First Aired: Nov 06, 2001
100 Scariest Movie Moments
as Self
Episodes: 5
First Aired: Oct 27, 2004
The Court
Episodes: 3
First Aired: Mar 26, 2002
Super Force
Episodes: 3
First Aired: Oct 05, 1990
Miami Vice
Episodes: 2
First Aired: Sep 16, 1984
Gargoyles
Episodes: 2
First Aired: Oct 24, 1994
Duckman
Episodes: 1
First Aired: Mar 05, 1994
The Incredible Hulk
Episodes: 1
First Aired: Nov 04, 1977
Karen Sisco
Episodes: 1
First Aired: Oct 01, 2003
The Twilight Zone
Episodes: 1
First Aired: Sep 27, 1985
Tales of the Gold Monkey
Episodes: 1
First Aired: Sep 22, 1982
New York Undercover
Episodes: 1
First Aired: Sep 08, 1994
Hart to Hart
Episodes: 1
First Aired: Sep 22, 1979
Cagney & Lacey
Episodes: 1
First Aired: Mar 25, 1982
Wiseguy
Episodes: 1
First Aired: Sep 16, 1987
Partners
Episodes: 1
First Aired: Sep 11, 1995
Day One
Episodes: 1
First Aired: Unknown
Life with Louie
Episodes: 1
First Aired: Dec 24, 1994
Extreme Ghostbusters
Episodes: 1
First Aired: Sep 01, 1997
Dead Talk Live
as Self - Guest
Episodes: 1
First Aired: Apr 25, 2020
Popularity History
Year | Month | Avg | Max | Min |
---|---|---|---|---|
2024 | 6 | 24 | 31 | 20 |
2024 | 7 | 43 | 64 | 22 |
2024 | 8 | 29 | 54 | 19 |
2024 | 9 | 19 | 44 | 9 |
2024 | 10 | 16 | 27 | 10 |
2024 | 11 | 16 | 25 | 9 |
2024 | 12 | 17 | 31 | 11 |
2025 | 1 | 27 | 49 | 12 |
2025 | 2 | 14 | 31 | 3 |
2025 | 3 | 6 | 24 | 1 |
2025 | 4 | 1 | 2 | 1 |
2025 | 5 | 3 | 4 | 1 |
2025 | 6 | 2 | 2 | 1 |
2025 | 7 | 1 | 2 | 0 |
2025 | 8 | 2 | 8 | 0 |