Acting

Jason Alexander

Born 1959-09-23 · Newark, New Jersey, USA 89 series159 films

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.

Jason Alexander's films on Charmy Movies →

Acting

2026Mating SeasonAlan (voice)1 ep.
2025LEGO Marvel Avengers: Strange TailsMagneto (voice)2 ep.
2025The Bad Guys: The SeriesD.B. Cougar (voice)4 ep.
2024Y llegaron de nocheCarl Laemmle7 ep.
2024Rock, Paper, ScissorsJonathan Fartjoke (voice)1 ep.
2023History of the World: Part IIMaurice Cheeks1 ep.
2021Star Trek: ProdigyCounselor Noum (voice)23 ep.
2021The Problem with Jon StewartJeff Bezos1 ep.
2021History of the SitcomSelf - Actor8 ep.
2021Celebrity Wheel of FortuneSelf - Contestant1 ep.
2020Who Wants to Be a MillionaireSelf - Contestant1 ep.
2020Stars in the HouseSelf2 ep.
2019The Movies That Made UsSelf1 ep.
2019Harley QuinnSy Borgman (voice)13 ep.
2019Mad About YouJason Alexander1 ep.
2018The ConnersPastor Phil2 ep.
2017Hit the RoadKen Swallow10 ep.
2017Young SheldonGene Lundy5 ep.
2017The OrvilleOlix2 ep.
2017Kody KapowGoji (voice)22 ep.
2017The Marvelous Mrs. MaiselAsher Friedman3 ep.
2017Dinner with DadJason Alexander8 ep.
2016The $100,000 PyramidSelf1 ep.
2016Match GameSelf - Panelist6 ep.
2016To Tell the TruthSelf - Panelist2 ep.
2015The GrinderCliff Bemis4 ep.
2015Big Time in Hollywood, FlJason Alexander1 ep.
2015The Late Late Show with James CordenSelf1 ep.
2014Penn Zero: Part-Time HeroCoach Wallace (voice)1 ep.
2014The Tom and Jerry ShowRick (voice)52 ep.
2014TripTankDoctor (voice)1 ep.
2013KirstieStanford Temple1 ep.
2013Hollywood Game NightSelf2 ep.
2013Drunk HistoryWilliam Tweed1 ep.
2012Comedians in Cars Getting CoffeeSelf1 ep.
2012Comedy Bang! Bang!Inspector Gantlet1 ep.
2011Talking DeadSelf1 ep.
2011China, ILHarold (voice)10 ep.
2010Fish HooksMr. Nibbles (voice)3 ep.
2010The Marriage RefSelf - Panelist1 ep.
2009The Cleveland Show1 ep.
2009MeteorDr. Chetwyn2 ep.
2008Shatner's Raw NerveSelf1 ep.
2008Step It Up and Dance1 ep.
2007Thank God You're HereSelf1 ep.
2006Talkshow with Spike Feresten1 ep.
2006Where My Dogs At?1 ep.
2006The New Adventures of Old ChristineDr. Palmer1 ep.
2005Everybody Hates ChrisPrincipal Edwards2 ep.
2005Robot ChickenKrampus (voice)1 ep.
2005The Late Late Show with Craig FergusonSelf1 ep.
2004Listen Up!Tony Kleinman22 ep.
2004The Tony Danza ShowSelf - Guest3 ep.
2003Real Time with Bill MaherSelf8 ep.
2002MonkMarty Eels1 ep.
2001Bob PattersonBob Patterson5 ep.
2001Good Day LiveSelf1 ep.
2001The Legend of TarzanZutho (voice)1 ep.
2001Primetime Glick1 ep.
2001Critics Choice AwardsSelf1 ep.
2000Curb Your EnthusiasmJason Alexander5 ep.
2000The Huntress1 ep.
2000Son of the Beach1 ep.
1999The Late Late Show with Craig KilbornSelf - Guest1 ep.
1999DilbertCatbert (voice)9 ep.
1998Hollywood SquaresSelf - Panelist30 ep.
1998HerculesPoseidon (voice)5 ep.
1996Muppets TonightSelf2 ep.
1996Remember WENNAlan Ballinger1 ep.
1995Star Trek: VoyagerKurros1 ep.
1994FriendsEarl1 ep.
1994DuckmanDuckman (voice)70 ep.
1994AladdinAbis Mal (voice)14 ep.
1992The Larry Sanders ShowJason Alexander1 ep.
1991DinosaursGeneral H. Norman Conquest (voice)7 ep.
1990Dream OnRandall Townsend1 ep.
1989SeinfeldGeorge Costanza180 ep.
1988Favorite SonChris Van Allen3 ep.
1987Everything's RelativeJulian Beeby10 ep.
1984E/RHarold Stickley7 ep.
1984Jeopardy!Self2 ep.
1983Reading RainbowSelf - Narrator (voice)1 ep.
1982Late Night with David LettermanSelf1 ep.
1980A Capitol FourthSelf46 ep.
1949The Emmy AwardsSelf1 ep.
—Saturday TV FunhouseTitey (voice)1 ep.

Behind the camera

2017Young SheldonDirector5 ep.
2017Dinner with DadWriter8 ep.
2010Mike & MollyDirector1 ep.
2006Campus LadiesDirector1 ep.
2005Criminal MindsDirector1 ep.
2005Everybody Hates ChrisDirector2 ep.
2001Bob PattersonExecutive Producer, Story, Teleplay5 ep.
1996Remember WENNDirector1 ep.
1989SeinfeldDirector180 ep.

Guest appearances

2026Who Wants to Be a MillionaireSelf - Contestant1 ep.
2026Mating SeasonAlan (voice)1 ep.
2025The Bad Guys: The SeriesD.B. Cougar (voice), Mysterious Figure (voice)4 ep.
2025LEGO Marvel Avengers: Strange TailsMagneto (voice)2 ep.
2022Star Trek: ProdigyCounselor Noum (voice), Doctor Noum (voice)23 ep.
1998Jeopardy!Self, Self - Clue Presenter2 ep.
2024Rock, Paper, ScissorsJonathan Fartjoke (voice)1 ep.
2010American Dad!Mr. Orlando (voice), Sal (voice)2 ep.
2023History of the World: Part IIMaurice Cheeks1 ep.
2022Rachael RaySelf - Guest1 ep.
2019Harley QuinnSy Borgman (voice)13 ep.
2022The $100,000 PyramidSelf1 ep.
2019The Marvelous Mrs. MaiselAsher Friedman3 ep.
2018Young SheldonGene Lundy5 ep.
2021The Problem with Jon StewartJeff Bezos1 ep.
2021The ConnersPastor Phil2 ep.
2021Celebrity Wheel of FortuneSelf - Contestant1 ep.
2021The Movies That Made UsSelf1 ep.
2020To Tell the TruthSelf - Panelist2 ep.
2020Late Night with Seth MeyersSelf - Guest1 ep.
2020Stars in the HouseSelf, Self - Special Guest2 ep.
2019Mad About YouJason Alexander1 ep.
2019Robot ChickenKrampus (voice)1 ep.
2006Jimmy Kimmel Live!Self2 ep.
2016Match GameSelf - Panelist6 ep.
2018The OrvilleOlix2 ep.
2017The Late Show with Stephen ColbertSelf - Guest1 ep.
2017The SimpsonsBourbon Verlander (voice)1 ep.
2016TripTankDoctor (voice)1 ep.
2015The GrinderCliff Bemis4 ep.
2015Talking DeadSelf1 ep.
2015Drunk HistoryWilliam Tweed1 ep.
2015Penn Zero: Part-Time HeroCoach Wallace (voice)1 ep.
2015Big Time in Hollywood, FlJason Alexander1 ep.
2015The Late Late Show with James CordenSelf1 ep.
2014Comedy Bang! Bang!Inspector Gantlet1 ep.
2014KirstieStanford Temple1 ep.
2014Comedians in Cars Getting CoffeeSelf1 ep.
2013Hollywood Game NightSelf2 ep.
2010Fish HooksMr. Nibbles (voice)3 ep.
2013CommunityMountain Man1 ep.
2004Real Time with Bill MaherSelf8 ep.
2012Two and a Half MenDr. Goodman1 ep.
2011Harry's LawRichard Cross1 ep.
2011Franklin & BashCarter Lang1 ep.
2010The Cleveland Show1 ep.
2010The Marriage RefSelf - Panelist1 ep.
2010Shatner's Raw NerveSelf1 ep.
2001Curb Your EnthusiasmJason Alexander5 ep.
2009Critics Choice AwardsSelf1 ep.
2008Criminal MindsProf. Rothchild1 ep.
2008Step It Up and Dance1 ep.
2008The New Adventures of Old ChristineDr. Palmer1 ep.
2007Thank God You're HereSelf1 ep.
2006Everybody Hates ChrisPrincipal Edwards2 ep.
2006Talkshow with Spike Feresten1 ep.
2006Where My Dogs At?1 ep.
1993Saturday Night LiveSelf (uncredited), Self - Host, Titey (voice)3 ep.
2005LIVE with Kelly and MarkSelf - Guest1 ep.
2004The Tony Danza ShowSelf - Guest3 ep.
2005MonkMarty Eels1 ep.
2004The Ellen DeGeneres ShowSelf2 ep.
2005People's Choice AwardsSelf - Host1 ep.
2005The Late Late Show with Craig FergusonSelf1 ep.
2004Good Day LiveSelf1 ep.
2003Primetime Glick1 ep.
2003Malcolm in the MiddleLeonard1 ep.
2002The Twilight ZonePatient1 ep.
2002Son of the Beach1 ep.
2001The Legend of TarzanZutho (voice)1 ep.
2001The Late Late Show with Craig KilbornSelf - Guest1 ep.
2001The Huntress1 ep.
1999Hollywood SquaresSelf - Panelist30 ep.
2001FriendsEarl1 ep.
2000Reading RainbowSelf - Narrator (voice)1 ep.
1999DilbertCatbert (voice)9 ep.
1999Star Trek: VoyagerKurros1 ep.
1998HerculesPoseidon (voice)5 ep.
1996Muppets TonightSelf2 ep.
1997Remember WENNAlan Ballinger1 ep.
1996The NannyJack1 ep.
1995The Emmy AwardsSelf1 ep.
1994AladdinAbis Mal (voice), Abis Mal / Abnor Mal (voice), Captain Albatross (voice)14 ep.
1994The Larry Sanders ShowJason Alexander1 ep.
1993Dream OnRandall Townsend1 ep.
1991DinosaursGeneral H. Norman Conquest (voice), Grown Baby (voice), Gus Molehill (voice), Sexual Harris (voice)7 ep.
1993Golden Globe AwardsSelf - Nominee1 ep.
1992Late Night with David LettermanSelf1 ep.
1988NewhartRamming1 ep.
1984E/RHarold Stickley7 ep.

Also known as: Jason Scott Greenspan · جیسون الکساندر · Jay Scott Greenspan