Known For
Acting
Known Credits
223
Gender
Male
Birthday
December 16, 1955 (70 years old)
Place of Birth
Brooklyn, New York City, New York, USA
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.
| 2026 | Recluseas | |
| 2026 | Odditiesas | |
| 2025 | No Addressas Harris | |
| 2024 | Rustas Blackburn | |
| 2024 | Americans with No Addressas Self | |
| 2024 | Schindler Space Architectas Frank Lloyd Wright (voice) | |
| 2024 | Reaganas George Schultz | |
| 2024 | Star Wars: Tales of the Empireas Gilad Pellaeon (voice) | |
| 2024 | The Ghost Trapas Maynard | |
| 2023 | Heightenedas Gordon | |
| 2023 | Butcher's Crossingas Charlie Hoge | |
| 2022 | The Auditionas Joel | |
| 2022 | Alchemy of the Spiritas Oliver | |
| 2020 | The Wall of Mexicoas Michael Rand | |
| 2020 | Dead Talk Liveas Self - Guest | |
| 2020 | The Dark and the Wickedas Priest | |
| 2020 | FBI: Most Wantedas Maurice Hewitt | |
| 2019 | Truth Be Toldas Lee Hackman | |
| 2019 | The Mandalorianas Gilad Pellaeon | |
| 2019 | Dark Harboras Priest James | |
| 2018 | The Maestroas Mario Castelnuovo-Tedesco | |
| 2018 | City of Liesas Edwards | |
| 2018 | Proud Maryas Uncle | |
| 2017 | Shotas Dr. Roberts | |
| 2017 | Born Guiltyas Mr. Milk | |
| 2016 | MacGyveras General John Acosta | |
| 2016 | Bullas Judge Hollingsworth | |
| 2016 | Moments of Clarityas Artemis | |
| 2016 | Allegiantas Phillip | |
| 2015 | Supergirlas Peter Lockwood | |
| 2015 | Solaceas Mr. Ellis | |
| 2015 | Zooas Ronnie 'Dogstick' Brannigan | |
| 2015 | The Giftas Forrest Bobo | |
| 2015 | 12 Monkeysas Jonathan Foster | |
| 2014 | Son of Batmanas Dr. Kirk Langstrom (voice) | |
| 2014 | This Last Lonely Placeas Frank Devore | |
| 2014 | Salemas Magistrat Hale | |
| 2014 | Small Timeas Chick | |
| 2014 | Transcendenceas Dr. Thomas Casey | |
| 2014 | ETXRas Gordon Shafer | |
| 2014 | Ponyas Uncle Jeff | |
| 2013 | Live at the Foxes Denas Kenneth | |
| 2013 | Louder Than Wordsas Dr. Lansen | |
| 2013 | Beware the Batmanas Manhunter / Paul Kirk (voice) | |
| 2012 | That Guy... Who Was in That Thingas Self | |
| 2012 | Longmireas Jeremiah Rains | |
| 2012 | Tales of Everyday Magicas Peter Keller | |
| 2011 | Fiveas Peter | |
| 2011 | Seeking Justiceas Lieutenant Durgan | |
| 2011 | The Booth at the Endas The Man | |
| 2011 | Girl Walks Into a Baras Moe | |
| 2011 | Being Humanas Liam McClean | |
| 2011 | Being Humanas Liam McLean | |
| 2010 | Lusteras Detective Carter | |
| 2010 | Fasteras Sergeant Mallory | |
| 2010 | The Walking Deadas Gregory | |
| 2010 | Nikitaas Percy Rose | |
| 2010 | Below the Beltwayas McMahon | |
| 2010 | Ben 10: Ultimate Alienas Warden Morgg / Trukk (voice) | |
| 2010 | Kick-Assas Detective Gigante | |
| 2010 | Justifiedas Charles Monroe | |
| 2010 | Bedroomsas Harry | |
| 2009 | Women in Troubleas Mr. Frost | |
| 2009 | Superman/Batman: Public Enemiesas Captain Atom (voice) | |
| 2009 | Repo Chickas Father De La Chasse | |
| 2009 | Year Oneas King | |
| 2009 | Cook Countyas Sonny | |
| 2009 | The Toe Tacticas Dad | |
| 2009 | Sparksas Sid Harris | |
| 2009 | Inside the Boxas Fred O'Brien | |
| 2008 | Batman: The Brave and the Boldas Sinestro (voice) | |
| 2008 | The Mentalistas Sheriff Thomas McAllister | |
| 2008 | Takenas Stuart St. John | |
| 2007 | Fractureas Judge Moran | |
| 2007 | Seraphim Fallsas Railroad Foreman | |
| 2006 | The Garageas Doc Ruppert | |
| 2006 | Jerichoas John Smith (uncredited) | |
| 2006 | Jerichoas John Smith (voice) | |
| 2006 | Out Thereas Uncle Doug | |
| 2006 | Magma: Volcanic Disasteras Peter Shepherd | |
| 2005 | Criminal Mindsas Det. Hyde | |
| 2005 | Bonesas Dr. Bancroft | |
| 2005 | The Closeras Detective Curt Landry | |
| 2005 | Deepwateras Gus | |
| 2005 | Drop Dead Sexyas Harkness | |
| 2005 | North Countryas Arlen Pavich | |
| 2005 | Mediumas Mitchell Slocombe | |
| 2005 | Standing Stillas Jonathan | |
| 2004 | 100 Scariest Movie Momentsas Self | |
| 2004 | Boston Legalas A.D.A. Rex Swarthmore | |
| 2004 | The Batmanas Paul (voice) | |
| 2004 | The Last Full Measureas | |
| 2004 | In Enemy Handsas Admiral Kentz | |
| 2003 | The Third Dateas Tommy Tulip | |
| 2003 | Karen Siscoas Alvin Simmons | |
| 2003 | Teen Titansas Mento / General Immortus (voice) | |
| 2003 | Teen Titansas Warp (voice) | |
| 2003 | Quicksandas Joey Patterson | |
| 2002 | The Twilight Zoneas Harry Kellogg | |
| 2002 | The Courtas Keith Nolan | |
| 2001 | Storytellingas Mr. DeMarco | |
| 2001 | Justice Leagueas General Brak / Dignitary / Soldier (voice) | |
| 2001 | Justice Leagueas General Brak / Soldier (voice) | |
| 2001 | 24as George Mason | |
| 2001 | Law & Order: Criminal Intentas George Pagolis | |
| 2001 | The Man from Elysian Fieldsas Virgil Koster | |
| 2001 | Going to Californiaas Clay Shelton | |
| 2001 | China: The Panda Adventureas Dakar Johnston | |
| 2000 | CSI: Crime Scene Investigationas Rory Atwater | |
| 2000 | Shanghai Noonas Nathan Van Cleef | |
| 2000 | Timecodeas Evan Wantz | |
| 1999 | The West Wingas Franklin Hollis | |
| 1999 | Universal Soldier: The Returnas Dr. Dylan Cotner | |
| 1999 | NetForceas Bo Tyler | |
| 1999 | Netforceas Bo Tyler | |
| 1999 | Batman Beyondas Dr. Childes (voice) | |
| 1999 | The Cherry Orchardas Yepihodov | |
| 1998 | Winchellas Gavreau | |
| 1998 | Phoenixas Lt. Clyde Webber | |
| 1998 | The Wild Thornberrysas Barking Deer #2 (voice) | |
| 1998 | The Wild Thornberrysas Stoat (voice) | |
| 1998 | Drivenas J.D. Johnson | |
| 1998 | The Truth About Julietas George | |
| 1997 | Breast Menas Male Interviewer | |
| 1997 | Amistadas Hammond | |
| 1997 | One Night Standas Charlie's Friend | |
| 1997 | The Legend of Calamity Janeas Additional Voices (voice) | |
| 1997 | Extreme Ghostbustersas | |
| 1997 | Air Force Oneas Agent Gibbs | |
| 1997 | Gattacaas Dr. Lamar | |
| 1997 | The Killing Jaras Danny “Figaretto” Evans | |
| 1996 | Persons Unknownas Tosh | |
| 1996 | Apollo 11: First Steps on the Moonas Buzz Aldrin | |
| 1996 | For Hopeas Date #4 (uncredited) | |
| 1996 | If These Walls Could Talkas John Barrows | |
| 1996 | Bulletproofas Gentry | |
| 1996 | Superman: The Animated Seriesas Sgt. Corey Mills (voice) | |
| 1996 | Women: Stories of Passionas Jimbo | |
| 1996 | Within the Rockas Ryan | |
| 1996 | The Rockas Lonner (uncredited) | |
| 1996 | Barb Wireas Alexander Willis | |
| 1996 | Poison Ivy 2: Lilyas Donald Falk | |
| 1996 | A Family Thingas Sunburned Man | |
| 1996 | Nash Bridgesas Neil Wojak | |
| 1996 | A Kidnapping in the Familyas Curtis Harrison | |
| 1995 | Heatas Ralph | |
| 1995 | Leaving Las Vegasas Cynical Cabbie | |
| 1995 | Partnersas Christophe Nnngaarzh | |
| 1995 | Apollo 13as Henry Hurt | |
| 1995 | Safeas Greg | |
| 1995 | The Outer Limitsas Terry McCammon | |
| 1995 | The Fifteen Minute Hamletas Shakespeare | |
| 1994 | Life with Louieas Pro Shop Cashier (voice) | |
| 1994 | Gargoylesas Coldsteel (Voice) | |
| 1994 | Gargoylesas Iago (Voice) | |
| 1994 | Attack of the 50 Ft. Womanas Second Man | |
| 1994 | ERas Detective Wilson | |
| 1994 | The Tickas Octopaganini (voice) | |
| 1994 | New York Undercoveras Dr Carl Weschler | |
| 1994 | Roswellas Sherman Carson | |
| 1994 | Duckmanas Hans (voice) | |
| 1994 | Caroline at Midnightas Joey Szabo | |
| 1993 | Donato and Daughteras Russ Loring | |
| 1993 | The X-Filesas Dr. Hodge | |
| 1993 | The Adventures of Brisco County, Jr.as Brett Bones | |
| 1993 | Good Adviceas Bernard | |
| 1993 | It's Nothing Personalas James Blakemore | |
| 1992 | A Few Good Menas Capt. Whitaker | |
| 1992 | Deadly Matrimonyas | |
| 1992 | Candymanas Trevor Lyle | |
| 1992 | The Gun in Betty Lou's Handbagas Marchat | |
| 1992 | A Private Matteras Peter Zenner | |
| 1992 | The Keysas Harold | |
| 1991 | For the Boysas Roberts, Vietnam | |
| 1991 | Billy Bathgateas Harvey Preston | |
| 1991 | Terminator 2: Judgment Dayas Todd Voight | |
| 1991 | Murder in High Placesas Wayne | |
| 1991 | Not of This Worldas Bruce MacNamara | |
| 1991 | Dillingeras Harry Copeland | |
| 1990 | The Rookieas Blackwell | |
| 1990 | Super Forceas Dr. Landru | |
| 1990 | Law & Orderas Clay Pollack | |
| 1990 | The Griftersas Lt. Pierson | |
| 1990 | Short Timeas Stark | |
| 1990 | The Guardianas Detective | |
| 1990 | The Last of the Finestas Fast Eddie | |
| 1990 | The Assassinas John Patrick Earl | |
| 1990 | The Gumshoe Kidas Monty Griswold | |
| 1990 | Grandas Jeffrey | |
| 1990 | Internal Affairsas Rudy Mohr | |
| 1989 | The Fabulous Baker Boysas Lloyd | |
| 1989 | L.A. Takedownas Waingro | |
| 1988 | Deadly Dreamsas Jack Torme | |
| 1988 | Tapeheadsas Ricky Fell | |
| 1988 | The Verne Miller Storyas Cardogan | |
| 1988 | The Lawless Landas Ez Andy | |
| 1987 | Walkeras Byron Cole | |
| 1987 | Wiseguyas Ray Spiotta | |
| 1987 | Straight to Hellas Preacher McMahon | |
| 1986 | Omega Syndromeas Yo-Yo | |
| 1986 | Sid and Nancyas Bowery Snax | |
| 1985 | The Twilight Zoneas (segment "Take My Life...Please!") | |
| 1985 | Volunteersas Kent Sutcliffe | |
| 1985 | Moonlightingas Scalper | |
| 1984 | Miami Viceas Tommy Lowell | |
| 1984 | Riptideas Taxi Driver | |
| 1983 | The A-Teamas Baker | |
| 1983 | The A-Teamas Sergeant Wilson | |
| 1982 | Remington Steeleas Dan Kowalski | |
| 1982 | Tales of the Gold Monkeyas Eric Fromby | |
| 1982 | Tag: The Assassination Gameas Connally | |
| 1982 | Cagney & Laceyas Maurice | |
| 1981 | Falcon Crestas Buzz Whitehead | |
| 1981 | Fire on the Mountainas | |
| 1981 | Mommie Dearestas Christopher Crawford | |
| 1979 | Hart to Hartas Christopher Hawks | |
| 1977 | The Incredible Hulkas Tom | |
| 1972 | M*A*S*Has Marine | |
| Saving Black Bearas | ||
| Path Lightsas Father | ||
| Paradise: Disturbedas | ||
| Relapseas Seymour | ||
| Day Oneas |
| 2009 | Cook County...Producer |
