★ 8 
Acting
Jason Alexander
Jason Alexander is best known for The Simpsons, Friends, Malcolm in the Middle and Criminal Minds. Jason Alexander was born on September 23, 1959. Jason Alexander is 67 years old (born September 23, 1959).
- Born
- September 23, 1959 (67 years old)
- Place of birth
- Newark, New Jersey, USA
Biography
Jay Scott Greenspan (born September 23, 1959), better known by his professional name of Jason Alexander, is an American actor, writer, comedian, television director and producer, and singer. He is best known for his role as George Costanza on the television series Seinfeld, appearing in the sitcom from 1989 to 1998. He also has had an active career on the stage, appearing in several Broadway musicals including Jerome Robbins' Broadway in 1989, for which he won the Tony Award as Best Actor in a Musical. He appeared in the Los Angeles production of The Producers with Martin Short. He is the Artistic Director of "Reprise! Broadway's Best in Los Angeles," where he has directed several musicals. Alexander is also an avid poker player.
Known for
Filmography
- —Saturday TV FunhouseTitey (voice)
- 2026Mating SeasonAlan (voice)
- 2025The Bad Guys: The SeriesMysterious Figure (voice)
- 2025LEGO Marvel Avengers: Strange TailsMagneto (voice)
- 2024Rock, Paper, ScissorsJonathan Fartjoke (voice)
- 2024Y llegaron de nocheCarl Laemmle
- 2023History of the World: Part IIMaurice Cheeks
- 2021History of the SitcomSelf - Actor
- 2021Star Trek: ProdigyDoctor Noum (voice)
- 2021Celebrity Wheel of FortuneSelf - Contestant
- 2021The Problem with Jon StewartJeff Bezos
- 2020Stars in the HouseSelf
- 2020Who Wants to Be a MillionaireSelf - Contestant
- 2019The Movies That Made UsSelf
- 2019Harley QuinnSy Borgman (voice)
- 2019Mad About YouJason Alexander
- 2018The ConnersPastor Phil
- 2017Hit the RoadKen Swallow
- 2017Dinner with DadJason Alexander
- 2017The Marvelous Mrs. MaiselAsher Friedman
- 2017Kody KapowGoji (voice)
- 2017The OrvilleOlix
- 2017Young SheldonGene Lundy
- 2016Match GameSelf - Panelist
- 2016The $100,000 PyramidSelf
- 2016To Tell the TruthSelf - Panelist
- 2015The GrinderCliff Bemis
- 2015The Late Late Show with James CordenSelf
- 2015Big Time in Hollywood, FlJason Alexander
- 2015The Late Show with Stephen ColbertSelf - Guest
- 2014Late Night with Seth MeyersSelf - Guest
- 2014The Tom and Jerry ShowRick (voice)
- 2014Penn Zero: Part-Time HeroCoach Wallace (voice)
- 2014TripTankDoctor (voice)
- 2013Drunk HistoryWilliam Tweed
- 2013KirstieStanford Temple
- 2013Hollywood Game NightSelf
- 2012Comedy Bang! Bang!Inspector Gantlet
- 2012Comedians in Cars Getting CoffeeSelf
- 2011Talking DeadSelf
- 2011China, ILHarold (voice)
- 2011Harry's LawRichard Cross
- 2011Franklin & BashCarter Lang
- 2010The Marriage RefSelf - Panelist
- 2010Fish HooksMr. Nibbles
- 2010Mike & MollyDirector
- 2009The Cleveland Show
- 2009MeteorDr. Chetwyn
- 2009CommunityMountain Man
- 2008Step It Up and Dance
- 2008Shatner's Raw NerveSelf
- 2007Thank God You're HereSelf
- 2006Talkshow with Spike Feresten
- 2006The New Adventures of Old ChristineDr. Palmer
- 2006Where My Dogs At?
- 2006Rachael RaySelf - Guest
- 2006Campus LadiesDirector
- 2005Everybody Hates ChrisPrincipal Edwards
- 2005The Late Late Show with Craig FergusonSelf
- 2005American Dad!Mr. Orlando (voice)
- 2005Criminal MindsProf. Rothchild
- 2005Robot ChickenKrampus (voice)
- 2004The Tony Danza ShowSelf - Guest
- 2004Listen Up!Tony Kleinman
- 2003The Ellen DeGeneres ShowSelf
- 2003Jimmy Kimmel Live!Self
- 2003Two and a Half MenDr. Goodman
- 2003Real Time with Bill MaherSelf
- 2002MonkMarty Eels
- 2002The Twilight ZonePatient
- 2001The Legend of TarzanZutho (voice)
- 2001Disney's House of Mouse
- 2001Bob PattersonBob Patterson
- 2001Good Day LiveSelf
- 2001Critics Choice AwardsSelf
- 2001Primetime Glick
- 2000Son of the Beach
- 2000The Huntress
- 2000Curb Your EnthusiasmJason Alexander
- 2000Malcolm in the MiddleLeonard
- 1999The Late Late Show with Craig KilbornSelf - Guest
- 1999DilbertCatbert (voice)
- 1998HerculesPoseidon
- 1998Hollywood SquaresSelf - Panelist
- 1996Muppets TonightSelf
- 1996Remember WENNAlan Ballinger
- 1995Star Trek: VoyagerKurros
- 1994DuckmanDuckman (voice)
- 1994FriendsEarl
- 1994AladdinAbis Mal (voice)
- 1993The NannyJack
- 1992The Larry Sanders ShowJason Alexander
- 1991DinosaursGrown Baby (voice)
- 1990Dream OnRandall Townsend
- 1989SeinfeldGeorge Costanza
- 1989The SimpsonsBourbon Verlander (voice)
- 1988Favorite SonChris Van Allen
- 1988LIVE with Kelly and MarkSelf - Guest
- 1987Everything's RelativeJulian Beeby
- 1984E/RHarold Stickley
- 1984Jeopardy!Self
- 1983Reading RainbowSelf - Narrator (voice)
- 1982Newhart
- 1982Late Night with David LettermanSelf
- 1980A Capitol FourthSelf
- 1975Saturday Night LiveSelf - Host
- 1975People's Choice AwardsSelf - Host
- 1956Tony AwardsSelf - Presenter
- 1949The Emmy AwardsSelf
- 1944Golden Globe AwardsSelf - Nominee
Frequently asked questions
What movies and shows has Jason Alexander been in?
Jason Alexander is best known for The Simpsons, Friends, Malcolm in the Middle and Criminal Minds.
When was Jason Alexander born?
Jason Alexander was born on September 23, 1959. (Newark, New Jersey, USA )
How old is Jason Alexander?
Jason Alexander is 67 years old (born September 23, 1959).
Updated: October 28, 2026 ·