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.
Blackburn
... 2025
Harris
... 2025
... 2024
George Schultz
... 2024
Maynard
... 2024
Gordon
... 2023
Charlie Hoge
... 2023
Joel
... 2022
Oliver
... 2022
Michael Rand
... 2020
Priest
... 2020
Priest James
... 2019
Mario Castelnuovo-Tedesco
... 2018
Edwards
... 2018
Uncle
... 2018
Dr. Roberts
... 2017
Mr. Milk
... 2017
Artemis
... 2016
Phillip
... 2016
Mr. Ellis
... 2015
Forrest Bobo
... 2015
Dr. Kirk Langstrom (voice)
... 2014
Frank Devore
... 2014
Chick
... 2014
Dr. Thomas Casey
... 2014
Uncle Jeff
... 2014
Kenneth
... 2013
Dr. Lansen
... 2013
... 2012
Peter Keller
... 2012
Peter
... 2011
Lieutenant Durgan
... 2011
... 2011
Detective Carter
... 2010
Sergeant Mallory
... 2010
McMahon
... 2010
Detective Gigante
... 2010
Harry
... 2010
Mr. Frost
... 2009
Captain Atom (voice)
... 2009
Father De La Chasse
... 2009
King
... 2009
Sonny
... 2009
Dad
... 2009
Sid Harris
... 2009
Stuart St. John
... 2008
Judge Moran
... 2007
Railroad Foreman
... 2007
Doc Ruppert
... 2006
Uncle Doug
... 2006
Peter Shepherd
... 2006
Gus
... 2005
Harkness
... 2005
Arlen Pavich
... 2005
Jonathan
... 2005
... 2004
Admiral Kentz
... 2004
Tommy Tulip
... 2003
Joey Patterson
... 2003
Mr. DeMarco
... 2001
Virgil Koster
... 2001
Dakar Johnston
... 2001
Nathan Van Cleef
... 2000
Evan Wantz
... 2000
Dr. Dylan Cotner
... 1999
Bo Tyler
... 1999
Yepihodov
... 1999
Gavreau
... 1998
Lt. Clyde Webber
... 1998
J.D. Johnson
... 1998
George
... 1998
Male Interviewer
... 1997
Hammond
... 1997
Dr. Lamar
... 1997
Agent Gibbs
... 1997
Danny “Figaretto” Evans
... 1997
Tosh
... 1996
Buzz Aldrin
... 1996
Date #4 (uncredited)
... 1996
John Barrows
... 1996
Gentry
... 1996
Ryan
... 1996
Lonner (uncredited)
... 1996
Alexander Willis
... 1996
Donald Falk
... 1996
Sunburned Man
... 1996
Curtis Harrison
... 1996
Ralph
... 1995
Cynical Cabbie
... 1995
Henry Hurt
... 1995
Greg
... 1995
Shakespeare
... 1995
Second Man
... 1994
Sherman Carson
... 1994
Joey Szabo
... 1994
Russ Loring
... 1993
James Blakemore
... 1993
Capt. Whitaker
... 1992
Kozolowski
... 1992
Trevor Lyle
... 1992
Marchat
... 1992
Peter Zenner
... 1992
Harold
... 1992
Roberts, Vietnam
... 1991
Harvey Preston
... 1991
Todd Voight
... 1991
Wayne
... 1991
Bruce MacNamara
... 1991
Harry Copeland
... 1991
Blackwell
... 1990
Lt. Pierson
... 1990
Stark
... 1990
Detective
... 1990
Fast Eddie
... 1990
John Patrick Earl
... 1990
Monty Griswold
... 1990
Rudy Mohr
... 1990
Lloyd
... 1989
Waingro
... 1989
Jack Torme
... 1988
Ricky Fell
... 1988
Cardogan
... 1988
Ez Andy
... 1988
Byron Cole
... 1987
Preacher McMahon
... 1987
Yo-Yo
... 1986
Bowery Snax
... 1986
Kent Sutcliffe
... 1985
Connally
... 1982
... 1981
Christopher Crawford
... 1981
Fred O'Brien