Xander Berkeley
Acting·December 16, 1955 — 70 years old·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.
Known For
Filmography · 216
—Paradise: Disturbed—RelapseSeymour—Saving Black Bear—Path LightsFather—Day OneTV2026Recluse2026Oddities2025No AddressHarris2024RustBlackburn2024Americans with No AddressSelf2024Schindler Space ArchitectFrank Lloyd Wright (voice)2024ReaganGeorge Schultz2024Star Wars: Tales of the EmpireTVGilad Pellaeon (voice)2024The Ghost TrapMaynard2023HeightenedGordon2023Butcher's CrossingCharlie Hoge2022The AuditionJoel2022Alchemy of the SpiritOliver2020The Wall of MexicoMichael Rand2020Dead Talk LiveTVSelf - Guest2020The Dark and the WickedPriest2020FBI: Most WantedTVMaurice Hewitt2019Truth Be ToldTVLee Hackman2019The MandalorianTVGilad Pellaeon2019Dark HarborPriest James2018The MaestroMario Castelnuovo-Tedesco2018City of LiesEdwards2018Proud MaryUncle2017ShotDr. Roberts2017Born GuiltyMr. Milk2016MacGyverTVGeneral John Acosta2016BullTVJudge Hollingsworth2016Moments of ClarityArtemis2016AllegiantPhillip2015SupergirlTVPeter Lockwood2015SolaceMr. Ellis2015ZooTVRonnie 'Dogstick' Brannigan2015The GiftForrest Bobo201512 MonkeysTVJonathan Foster2014Son of BatmanDr. Kirk Langstrom (voice)2014This Last Lonely PlaceFrank Devore2014SalemTVMagistrat Hale2014Small TimeChick2014TranscendenceDr. Thomas Casey2014ETXRGordon Shafer2014PonyUncle Jeff2013Live at the Foxes DenKenneth2013Louder Than WordsDr. Lansen2013Beware the BatmanTVManhunter / Paul Kirk (voice)2012That Guy... Who Was in That ThingSelf2012LongmireTVJeremiah Rains2012Tales of Everyday MagicPeter Keller2011FivePeter2011Seeking JusticeLieutenant Durgan2011The Booth at the EndTVThe Man2011Girl Walks Into a BarMoe2011Being HumanTVLiam McClean · Liam McLean2010LusterDetective Carter2010FasterSergeant Mallory2010The Walking DeadTVGregory2010NikitaTVPercy Rose2010Below the BeltwayMcMahon2010Ben 10: Ultimate AlienTVWarden Morgg / Trukk (voice)2010Kick-AssDetective Gigante2010JustifiedTVCharles Monroe2010BedroomsHarry2009Women in TroubleMr. Frost2009Superman/Batman: Public EnemiesCaptain Atom (voice)2009Repo ChickFather De La Chasse2009Year OneKing2009Cook CountySonny · Producer2009The Toe TacticDad2009SparksSid Harris2009Inside the BoxFred O'Brien2008Batman: The Brave and the BoldTVSinestro (voice)2008The MentalistTVSheriff Thomas McAllister2008TakenStuart St. John2007FractureJudge Moran2007Seraphim FallsRailroad Foreman2006The GarageDoc Ruppert2006JerichoTVJohn Smith (uncredited) · John Smith (voice)2006Out ThereUncle Doug2006Magma: Volcanic DisasterPeter Shepherd2005Criminal MindsTVDet. Hyde2005BonesTVDr. Bancroft2005The CloserTVDetective Curt Landry2005DeepwaterGus2005Drop Dead SexyHarkness2005North CountryArlen Pavich2005MediumTVMitchell Slocombe2005Standing StillJonathan2004100 Scariest Movie MomentsTVSelf2004Boston LegalTVA.D.A. Rex Swarthmore2004The BatmanTVPaul (voice)2004The Last Full Measure2004In Enemy HandsAdmiral Kentz2003The Third DateTommy Tulip2003Karen SiscoTVAlvin Simmons2003Teen TitansTVMento / General Immortus (voice) · Warp (voice)2003QuicksandJoey Patterson2002The Twilight ZoneTVHarry Kellogg2002The CourtTVKeith Nolan2001StorytellingMr. DeMarco2001Justice LeagueTVGeneral Brak / Dignitary / Soldier (voice) · General Brak / Soldier (voice)200124TVGeorge Mason2001Law & Order: Criminal IntentTVGeorge Pagolis2001The Man from Elysian FieldsVirgil Koster2001Going to CaliforniaTVClay Shelton2001China: The Panda AdventureDakar Johnston2000CSI: Crime Scene InvestigationTVRory Atwater2000Shanghai NoonNathan Van Cleef2000TimecodeEvan Wantz1999The West WingTVFranklin Hollis1999Universal Soldier: The ReturnDr. Dylan Cotner1999NetForceBo Tyler1999NetforceTVBo Tyler1999Batman BeyondTVDr. Childes (voice)1999The Cherry OrchardYepihodov1998WinchellGavreau1998PhoenixLt. Clyde Webber1998The Wild ThornberrysTVBarking Deer #2 (voice) · Stoat (voice)1998DrivenJ.D. Johnson1998The Truth About JulietGeorge1997Breast MenMale Interviewer1997AmistadHammond1997One Night StandCharlie's Friend1997The Legend of Calamity JaneTVAdditional Voices (voice)1997Extreme GhostbustersTV1997Air Force OneAgent Gibbs1997GattacaDr. Lamar1997The Killing JarDanny “Figaretto” Evans1996Persons UnknownTosh1996Apollo 11: First Steps on the MoonBuzz Aldrin1996For HopeDate #4 (uncredited)1996If These Walls Could TalkJohn Barrows1996BulletproofGentry1996Superman: The Animated SeriesTVSgt. Corey Mills (voice)1996Women: Stories of PassionTVJimbo1996Within the RockRyan1996The RockLonner (uncredited)1996Barb WireAlexander Willis1996Poison Ivy 2: LilyDonald Falk1996A Family ThingSunburned Man1996Nash BridgesTVNeil Wojak1996A Kidnapping in the FamilyCurtis Harrison1995HeatRalph1995Leaving Las VegasCynical Cabbie1995PartnersTVChristophe Nnngaarzh1995Apollo 13Henry Hurt1995SafeGreg1995The Outer LimitsTVTerry McCammon1995The Fifteen Minute HamletShakespeare1994Life with LouieTVPro Shop Cashier (voice)1994GargoylesTVIago (Voice) · Coldsteel (Voice)1994Attack of the 50 Ft. WomanSecond Man1994ERTVDetective Wilson1994The TickTVOctopaganini (voice)1994New York UndercoverTVDr Carl Weschler1994RoswellSherman Carson1994DuckmanTVHans (voice)1994Caroline at MidnightJoey Szabo1993Donato and DaughterRuss Loring1993The X-FilesTVDr. Hodge1993The Adventures of Brisco County, Jr.TVBrett Bones1993Good AdviceTVBernard1993It's Nothing PersonalJames Blakemore1992A Few Good MenCapt. Whitaker1992Deadly Matrimony1992CandymanTrevor Lyle1992The Gun in Betty Lou's HandbagMarchat1992A Private MatterPeter Zenner1992The KeysHarold1991For the BoysRoberts, Vietnam1991Billy BathgateHarvey Preston1991Terminator 2: Judgment DayTodd Voight1991Murder in High PlacesWayne1991Not of This WorldBruce MacNamara1991DillingerHarry Copeland1990The RookieBlackwell1990Super ForceTVDr. Landru1990Law & OrderTVClay Pollack1990The GriftersLt. Pierson1990Short TimeStark1990The GuardianDetective1990The Last of the FinestFast Eddie1990The AssassinJohn Patrick Earl1990The Gumshoe KidMonty Griswold1990GrandTVJeffrey1990Internal AffairsRudy Mohr1989The Fabulous Baker BoysLloyd1989L.A. TakedownWaingro1988Deadly DreamsJack Torme1988TapeheadsRicky Fell1988The Verne Miller StoryCardogan1988The Lawless LandEz Andy1987WalkerByron Cole1987WiseguyTVRay Spiotta1987Straight to HellPreacher McMahon1986Omega SyndromeYo-Yo1986Sid and NancyBowery Snax1985The Twilight ZoneTV(segment "Take My Life...Please!")1985VolunteersKent Sutcliffe1985MoonlightingTVScalper1984Miami ViceTVTommy Lowell1984RiptideTVTaxi Driver1983The A-TeamTVBaker · Sergeant Wilson1982Remington SteeleTVDan Kowalski1982Tales of the Gold MonkeyTVEric Fromby1982Tag: The Assassination GameConnally1982Cagney & LaceyTVMaurice1981Falcon CrestTVBuzz Whitehead1981Fire on the Mountain1981Mommie DearestChristopher Crawford1979Hart to HartTVChristopher Hawks1977The Incredible HulkTVTom1972M*A*S*HTVMarine