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.
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.
External links
Filmography (Movies)
Legacy of Screams: The Evolution of Horror Movies
Character:Self - (archive footage)
Release Date:21/11/2025
Rust
Character:Blackburn
Release Date:01/05/2025
No Address
Character:Harris
Release Date:27/02/2025
Americans with No Address
Character:Self
Release Date:25/10/2024
Schindler Space Architect
Character:Frank Lloyd Wright (voice)
Release Date:20/10/2024
Reagan
Character:George Schultz
Release Date:29/08/2024
The Ghost Trap
Character:Maynard
Release Date:19/04/2024
Heightened
Character:Gordon
Release Date:23/06/2023
Butcher's Crossing
Character:Charlie Hoge
Release Date:03/02/2023
The Audition
Character:Joel
Release Date:24/10/2022
Alchemy of the Spirit
Character:Oliver
Release Date:16/02/2022
The Wall of Mexico
Character:Michael Rand
Release Date:13/10/2020
The Dark and the Wicked
Character:Priest
Release Date:16/04/2020
Dark Harbor
Character:Priest James
Release Date:26/09/2019
The Maestro
Character:Mario Castelnuovo-Tedesco
Release Date:08/12/2018
City of Lies
Character:Edwards
Release Date:06/09/2018
Proud Mary
Character:Uncle
Release Date:12/01/2018
Shot
Character:Dr. Roberts
Release Date:22/09/2017
Born Guilty
Character:Mr. Milk
Release Date:07/04/2017
Moments of Clarity
Character:Artemis
Release Date:16/09/2016
Allegiant
Character:Phillip
Release Date:09/03/2016
Solace
Character:Mr. Ellis
Release Date:03/09/2015
The Gift
Character:Forrest Bobo
Release Date:19/06/2015
Son of Batman
Character:Dr. Kirk Langstrom (voice)
Release Date:13/05/2014
This Last Lonely Place
Character:Frank Devore
Release Date:26/04/2014
Small Time
Character:Chick
Release Date:18/04/2014
Transcendence
Character:Dr. Thomas Casey
Release Date:16/04/2014
Pony
Character:Uncle Jeff
Release Date:01/01/2014
Live at the Foxes Den
Character:Kenneth
Release Date:06/12/2013
Louder Than Words
Character:Dr. Lansen
Release Date:11/10/2013
That Guy... Who Was in That Thing
Character:Self
Release Date:11/10/2012
Tales of Everyday Magic
Character:Peter Keller
Release Date:01/01/2012
Five
Character:Peter
Release Date:10/10/2011
Seeking Justice
Character:Lieutenant Durgan
Release Date:02/09/2011
Girl Walks Into a Bar
Character:Moe
Release Date:07/03/2011
Luster
Character:Detective Carter
Release Date:12/12/2010
Faster
Character:Sergeant Mallory
Release Date:23/11/2010
Below the Beltway
Character:McMahon
Release Date:23/04/2010
Kick-Ass
Character:Detective Gigante
Release Date:26/03/2010
Bedrooms
Character:Harry
Release Date:01/01/2010
Women in Trouble
Character:Mr. Frost
Release Date:13/11/2009
Superman/Batman: Public Enemies
Character:Captain Atom (voice)
Release Date:29/09/2009
Repo Chick
Character:Father De La Chasse
Release Date:09/09/2009
Year One
Character:King
Release Date:18/06/2009
Cook County
Character:Sonny
Release Date:26/03/2009
The Toe Tactic
Character:Dad
Release Date:29/01/2009
Sparks
Character:Sid Harris
Release Date:16/01/2009
Inside the Box
Character:Fred O'Brien
Release Date:01/01/2009
Taken
Character:Stuart St. John
Release Date:18/02/2008
Fracture
Character:Judge Moran
Release Date:19/04/2007
Seraphim Falls
Character:Railroad Foreman
Release Date:26/01/2007
The Garage
Character:Doc Ruppert
Release Date:12/10/2006
Out There
Character:Uncle Doug
Release Date:10/06/2006
Magma: Volcanic Disaster
Character:Peter Shepherd
Release Date:21/01/2006
Deepwater
Character:Gus
Release Date:09/06/2005
Drop Dead Sexy
Character:Harkness
Release Date:12/03/2005
North Country
Character:Arlen Pavich
Release Date:12/02/2005
Standing Still
Character:Jonathan
Release Date:02/01/2005
The Last Full Measure
Character:
Release Date:01/04/2004
In Enemy Hands
Character:Admiral Kentz
Release Date:25/02/2004
The Third Date
Character:Tommy Tulip
Release Date:31/12/2003
Quicksand
Character:Joey Patterson
Release Date:08/01/2003
Storytelling
Character:Mr. DeMarco
Release Date:08/11/2001
The Man from Elysian Fields
Character:Virgil Koster
Release Date:13/09/2001
China: The Panda Adventure
Character:Dakar Johnston
Release Date:09/06/2001
Shanghai Noon
Character:Nathan Van Cleef
Release Date:26/05/2000
Timecode
Character:Evan Wantz
Release Date:28/04/2000
Universal Soldier: The Return
Character:Dr. Dylan Cotner
Release Date:05/08/1999
NetForce
Character:Bo Tyler
Release Date:01/02/1999
The Cherry Orchard
Character:Yepihodov
Release Date:01/01/1999
Winchell
Character:Gavreau
Release Date:21/11/1998
Phoenix
Character:Lt. Clyde Webber
Release Date:04/09/1998
Driven
Character:J.D. Johnson
Release Date:23/04/1998
The Truth About Juliet
Character:George
Release Date:01/01/1998
Breast Men
Character:Male Interviewer
Release Date:13/12/1997
Amistad
Character:Hammond
Release Date:10/12/1997
One Night Stand
Character:Charlie's Friend
Release Date:14/11/1997
Gattaca
Character:Dr. Lamar
Release Date:07/09/1997
Air Force One
Character:Agent Gibbs
Release Date:25/07/1997
The Killing Jar
Character:Danny “Figaretto” Evans
Release Date:27/05/1997
Persons Unknown
Character:Tosh
Release Date:27/12/1996
Apollo 11: First Steps on the Moon
Character:Buzz Aldrin
Release Date:17/11/1996
For Hope
Character:Date #4 (uncredited)
Release Date:17/11/1996
If These Walls Could Talk
Character:John Barrows
Release Date:11/09/1996
Bulletproof
Character:Gentry
Release Date:06/09/1996
Within the Rock
Character:Ryan
Release Date:08/06/1996
The Rock
Character:Lonner (uncredited)
Release Date:07/06/1996
Barb Wire
Character:Alexander Willis
Release Date:02/05/1996
Poison Ivy 2: Lily
Character:Donald Falk
Release Date:26/04/1996
A Family Thing
Character:Sunburned Man
Release Date:29/03/1996
A Kidnapping in the Family
Character:Curtis Harrison
Release Date:26/02/1996
Heat
Character:Ralph
Release Date:15/12/1995
Leaving Las Vegas
Character:Cynical Cabbie
Release Date:27/10/1995
Apollo 13
Character:Henry Hurt
Release Date:30/06/1995
Safe
Character:Greg
Release Date:23/06/1995
The Fifteen Minute Hamlet
Character:Shakespeare
Release Date:01/01/1995
Attack of the 50 Ft. Woman
Character:Second Man
Release Date:28/09/1994
Roswell
Character:Sherman Carson
Release Date:31/07/1994
Caroline at Midnight
Character:Joey Szabo
Release Date:26/01/1994
Donato and Daughter
Character:Russ Loring
Release Date:21/09/1993
It's Nothing Personal
Character:James Blakemore
Release Date:01/02/1993
A Few Good Men
Character:Capt. Whitaker
Release Date:11/12/1992
Deadly Matrimony
Character:Kozolowski
Release Date:22/11/1992
Candyman
Character:Trevor Lyle
Release Date:16/10/1992
The Gun in Betty Lou's Handbag
Character:Marchat
Release Date:21/08/1992
A Private Matter
Character:Peter Zenner
Release Date:20/06/1992
The Keys
Character:Harold
Release Date:12/04/1992
For the Boys
Character:Roberts, Vietnam
Release Date:22/11/1991
Billy Bathgate
Character:Harvey Preston
Release Date:01/11/1991
Terminator 2: Judgment Day
Character:Todd Voight
Release Date:03/07/1991
Murder in High Places
Character:Wayne
Release Date:02/06/1991
Not of This World
Character:Bruce MacNamara
Release Date:12/02/1991
Dillinger
Character:Harry Copeland
Release Date:06/01/1991
The Rookie
Character:Blackwell
Release Date:07/12/1990
The Grifters
Character:Lt. Pierson
Release Date:08/08/1990
Short Time
Character:Stark
Release Date:04/05/1990
The Guardian
Character:Detective
Release Date:27/04/1990
The Last of the Finest
Character:Fast Eddie
Release Date:09/03/1990
The Assassin
Character:John Patrick Earl
Release Date:21/02/1990
The Gumshoe Kid
Character:Monty Griswold
Release Date:02/02/1990
Internal Affairs
Character:Rudy Mohr
Release Date:12/01/1990
The Fabulous Baker Boys
Character:Lloyd
Release Date:13/10/1989
L.A. Takedown
Character:Waingro
Release Date:27/08/1989
Deadly Dreams
Character:Jack Torme
Release Date:26/10/1988
Tapeheads
Character:Ricky Fell
Release Date:21/10/1988
The Verne Miller Story
Character:Cardogan
Release Date:21/06/1988
The Lawless Land
Character:Ez Andy
Release Date:15/01/1988
Walker
Character:Byron Cole
Release Date:04/12/1987
Straight to Hell
Character:Preacher McMahon
Release Date:26/06/1987
Omega Syndrome
Character:Yo-Yo
Release Date:26/10/1986
Sid and Nancy
Character:Bowery Snax
Release Date:12/09/1986
Volunteers
Character:Kent Sutcliffe
Release Date:16/08/1985
Tag: The Assassination Game
Character:Connally
Release Date:20/04/1982
Fire on the Mountain
Character:
Release Date:23/11/1981
Mommie Dearest
Character:Christopher Crawford
Release Date:16/09/1981
Television Appearances
Star Wars: Tales of the Empire
Character:Gilad Pellaeon (voice)
Dead Talk Live
Character:Self - Guest
FBI: Most Wanted
Character:Maurice Hewitt
Truth Be Told
Character:Lee Hackman
The Mandalorian
Character:Gilad Pellaeon
MacGyver
Character:General John Acosta
Bull
Character:Judge Hollingsworth
Supergirl
Character:Peter Lockwood
Zoo
Character:Ronnie 'Dogstick' Brannigan
12 Monkeys
Character:Jonathan Foster
Salem
Character:Magistrat Hale
Beware the Batman
Character:Manhunter / Paul Kirk (voice)
Longmire
Character:Jeremiah Rains
The Booth at the End
Character:The Man
Being Human
Character:Liam McClean
Being Human
Character:Liam McLean
The Walking Dead
Character:Gregory
Nikita
Character:Percy Rose
Ben 10: Ultimate Alien
Character:Warden Morgg / Trukk (voice)
Justified
Character:Charles Monroe
Batman: The Brave and the Bold
Character:Sinestro (voice)
The Mentalist
Character:Sheriff Thomas McAllister
Jericho
Character:John Smith (uncredited)
Jericho
Character:John Smith (voice)
Criminal Minds
Character:Det. Hyde
Bones
Character:Dr. Bancroft
The Closer
Character:Detective Curt Landry
Medium
Character:Mitchell Slocombe
100 Scariest Movie Moments
Character:Self
Boston Legal
Character:A.D.A. Rex Swarthmore
The Batman
Character:Paul (voice)
Karen Sisco
Character:Alvin Simmons
Teen Titans
Character:Mento / General Immortus (voice)
Teen Titans
Character:Warp (voice)
The Twilight Zone
Character:Harry Kellogg
The Court
Character:Keith Nolan
Justice League
Character:General Brak / Soldier (voice)
Justice League
Character:General Brak / Dignitary / Soldier (voice)
24
Character:George Mason
Law & Order: Criminal Intent
Character:George Pagolis
Going to California
Character:Clay Shelton
CSI: Crime Scene Investigation
Character:Rory Atwater
The West Wing
Character:Franklin Hollis
Netforce
Character:Bo Tyler
Batman Beyond
Character:Dr. Childes (voice)
The Wild Thornberrys
Character:Barking Deer #2 (voice)
The Wild Thornberrys
Character:Stoat (voice)
The Legend of Calamity Jane
Character:Additional Voices (voice)
Extreme Ghostbusters
Character:
Superman: The Animated Series
Character:Sgt. Corey Mills (voice)
Women: Stories of Passion
Character:Jimbo
Nash Bridges
Character:Neil Wojak
Partners
Character:Christophe Nnngaarzh
The Outer Limits
Character:Terry McCammon
Life with Louie
Character:Pro Shop Cashier (voice)
Gargoyles
Character:Iago (Voice)
Gargoyles
Character:Coldsteel (Voice)
ER
Character:Detective Wilson
The Tick
Character:Octopaganini (voice)
New York Undercover
Character:Dr Carl Weschler
Duckman
Character:Hans (voice)
The X-Files
Character:Dr. Hodge
The Adventures of Brisco County, Jr.
Character:Brett Bones
Good Advice
Character:Bernard
Super Force
Character:Dr Landru
Law & Order
Character:Clay Pollack
Grand
Character:Jeffrey
Wiseguy
Character:Ray Spiotta
The Twilight Zone
Character:(segment "Take My Life...Please!")
Moonlighting
Character:Scalper
Miami Vice
Character:Tommy Lowell
Riptide
Character:Taxi Driver
The A-Team
Character:Baker
The A-Team
Character:Sergeant Wilson
Remington Steele
Character:Dan Kowalski
Tales of the Gold Monkey
Character:Eric Fromby
Cagney & Lacey
Character:Maurice
Falcon Crest
Character:Buzz Whitehead
Hart to Hart
Character:Christopher Hawks
The Incredible Hulk
Character:Tom
M*A*S*H
Character:Marine
Images
