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
Movies
- Terminator 2: Judgment ...
1991
- A Few Good Men
1992
- Heat
1995
- Apollo 13
1995
- Gattaca
1997
- Universal Soldier: The ...
1999
- The Fabulous Baker Boys
1989
- Superman/Batman: Public...
2009
- Fracture
2007
- The Rookie
1990
- Kick-Ass
2010
- In Enemy Hands
2004
- Short Time
1990
- Barb Wire
1996
- Shanghai Noon
2000
- Taken
2008
- Candyman
1992
- Safe
1995
- Air Force One
1997
- L.A. Takedown
1989
- Seraphim Falls
2007
- Straight to Hell
1987
- Deepwater
2005
- Phoenix
1998
- Walker
1987
- If These Walls Could Ta...
1996
- Timecode
2000
- Sid and Nancy
1986
- Pony
2014
- Mommie Dearest
1981
- Bedrooms
2010
- Storytelling
2001
- Luster
2010
- Year One
2009
- Quicksand
2003
- The Grifters
1990
- Poison Ivy 2: Lily
1996
- Magma: Volcanic Disaster
2006
- The Garage
2006
- Volunteers
1985
- Persons Unknown
1996
- NetForce
1999
- Seeking Justice
2011
- Cook County
2009
- Attack of the 50 Ft. Wo...
1994
- Deadly Dreams
1988
- China: The Panda Advent...
2001
- Heightened
2023
- Girl Walks Into a Bar
2011
- Omega Syndrome
1986
- Below the Beltway
2010
- Alchemy of the Spirit
2022
- The Toe Tactic
2009
- Donato and Daughter
1993
- That Guy... Who Was in ...
2012
- The Verne Miller Story
1988
- The Lawless Land
1988
- Winchell
1998
- Son of Batman
2014
- Live at the Foxes Den
2013
- It's Nothing Personal
1993
- Louder Than Words
2013
- Small Time
2014
- Dillinger
1991
- Drop Dead Sexy
2005
- The Gumshoe Kid
1990
- The Guardian
1990
- Butcher's Crossing
2023
- Transcendence
2014
- Breast Men
1997
- The Keys
1992
- Tales of Everyday Magic
2012
- A Private Matter
1992
- No Address
2025
- The Audition
2022
- Murder in High Places
1991
- Within the Rock
1996
- Solace
2015
- Out There
2006
- Deadly Matrimony
1992
- Moments of Clarity
2016
- The Ghost Trap
2024
- Apollo 11: First Steps ...
1996
- The Third Date
2003
- The Rock
1996
- This Last Lonely Place
2014
- Roswell
1994
- Allegiant
2016
- The Truth About Juliet
1998
- Americans with No Addre...
2024
- Inside the Box
2009
- Five
2011
- Caroline at Midnight
1994
- Repo Chick
2009
- Tag: The Assassination ...
1982
- Not of This World
1991
- Standing Still
2005
- Proud Mary
2018
- Shot
2017
- A Kidnapping in the Fam...
1996
- Born Guilty
2017
- The Gift
2015
- City of Lies
2018
- Leaving Las Vegas
1995
- Amistad
1997
- The Cherry Orchard
1999
- The Wall of Mexico
2020
- The Maestro
2018
- The Killing Jar
1997
- The Fifteen Minute Haml...
1995
- Faster
2010
- A Family Thing
1996
- Bulletproof
1996
- Sparks
2009
- Billy Bathgate
1991
- The Assassin
1990
- The Gun in Betty Lou's ...
1992
- Tapeheads
1988
- The Last of the Finest
1990
- Internal Affairs
1990
- Driven
1998
- The Dark and the Wicked
2020
- Women in Trouble
2009
- Dark Harbor
2019
- Fire on the Mountain
1981
- The Man from Elysian Fi...
2001
- For Hope
1996
- For the Boys
1991
- Reagan
2024
- The Last Full Measure
2004
- North Country
2005
- Rust
2025
- Oddities
- Recluse
- One Night Stand
1997
- Schindler Space Archite...
2024
TV Shows
- Medium
2005
- Falcon Crest
1981
- Nash Bridges
1996
- Duckman
1994
- Batman Beyond
1999
- Law & Order
1990
- M*A*S*H
1972
- Remington Steele
1982
- Teen Titans
2003
- Jericho
2006
- CSI: Crime Scene Invest...
2000
- The Incredible Hulk
1977
- The Adventures of Brisc...
1993
- Karen Sisco
2003
- The A-Team
1983
- The Batman
2004
- Gargoyles
1994
- Miami Vice
1984
- Bones
2005
- The Twilight Zone
1985
- The Wild Thornberrys
1998
- Moonlighting
1985
- Tales of the Gold Monkey
1982
- New York Undercover
1994
- Criminal Minds
2005
- The X-Files
1993
- Hart to Hart
1979
- Cagney & Lacey
1982
- Superman: The Animated ...
1996
- Law & Order: Criminal I...
2001
- Wiseguy
1987
- ER
1994
- Boston Legal
2004
- Partners
1995
- The Court
2002
- Day One
- The Outer Limits
1995
- Truth Be Told
2019
- The Mandalorian
2019
- Zoo
2015
- Nikita
2010
- The Twilight Zone
2002
- Justice League
2001
- Justice League
2001
- The Wild Thornberrys
1998
- The Mentalist
2008
- Salem
2014
- Jericho
2006
- The West Wing
1999
- Ben 10: Ultimate Alien
2010
- The Walking Dead
2010
- Bull
2016
- Life with Louie
1994
- 12 Monkeys
2015
- Netforce
1999
- Being Human
2011
- Being Human
2011
- The Tick
1994
- The Legend of Calamity ...
1997
- Justified
2010
- Women: Stories of Passi...
1996
- Extreme Ghostbusters
1997
- 100 Scariest Movie Mome...
2004
- The A-Team
1983
- Supergirl
2015
- Dead Talk Live
2020
- Star Wars: Tales of the...
2024
- MacGyver
2016
- Going to California
2001
- Longmire
2012
- The Booth at the End
2011
- Super Force
1990
- Good Advice
1993
- The Closer
2005
- Teen Titans
2003
- 24
2001
- FBI: Most Wanted
2020
- Grand
1990
- Batman: The Brave and t...
2008
- Beware the Batman
2013
- Riptide
1984
- Gargoyles
1994