Jason Alexander

Acting

Jason Alexander

Born September 23, 1959Newark, New Jersey, USA 212 credits

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

Jimmy
2026Jimmy
as Louis B. MayerMovie
The Gettysburg Address
2025The Gettysburg Address
as Noah Brooks (voice)Movie
The Bad Guys: The Series
2025The Bad Guys: The Series
as Mysterious Figure (voice)TV
Stealing Pulp Fiction
2025Stealing Pulp Fiction
as Dr. MendelbaumMovie
The Electric State
2025The Electric State
as Ted / WingmanMovie
Y llegaron de noche
2024Y llegaron de noche
as Carl LaemmleTV
Dick Van Dyke: 98 Years of Magic
2023Dick Van Dyke: 98 Years of Magic
as Self - PerformerMovie
Leo
2023Leo
as Jayda's Dad (voice)Movie
Rock, Paper, Scissors
2023Rock, Paper, Scissors
as Jonathan Fartjoke (voice)TV
Dunston Checks Out
2022Dunston Checks Out
as Jason Alexander (archival footage)Movie
Star Trek: Prodigy
2021Star Trek: Prodigy
as Doctor Noum (voice)TV
History of the Sitcom
2021History of the Sitcom
as Self - ActorTV
Celebrity Wheel of Fortune
2021Celebrity Wheel of Fortune
as Self - ContestantTV
Faith Based
2020Faith Based
as Nicky SteeleMovie
My Boyfriend's Meds
2020My Boyfriend's Meds
as Dr. SternbachMovie
Harley Quinn
2019Harley Quinn
as Sy Borgman (voice)TV
Mad About You
2019Mad About You
as Jason AlexanderTV
The Conners
2018The Conners
as Pastor PhilTV
The Portuguese Kid
2018The Portuguese Kid
as Barry DragonettiMovie
Bucky and the Squirrels
2018Bucky and the Squirrels
as Jason AlexanderMovie
Hit the Road
2017Hit the Road
as Ken SwallowTV
Young Sheldon
2017Young Sheldon
as Gene LundyTV
Kody Kapow
2017Kody Kapow
as Goji (voice)TV
Dinner with Dad
2017Dinner with Dad
as Jason AlexanderTV
The Mark Lembeck Technique
2016The Mark Lembeck Technique
as Mark LembeckMovie
Match Game
2016Match Game
as Self - PanelistTV
Tom and Jerry: Back to Oz
2016Tom and Jerry: Back to Oz
as Mr. Bibb / The Nome King (voice)Movie
To Tell the Truth
2016To Tell the Truth
as Self - PanelistTV
The Last Laugh
2016The Last Laugh
as SelfMovie
The Grinder
2015The Grinder
as Cliff BemisTV
Big Time in Hollywood, Fl
2015Big Time in Hollywood, Fl
as Jason AlexanderTV
Wild Card
2015Wild Card
as PinkyMovie
How Murray Saved Christmas
2014How Murray Saved Christmas
as Doc Holiday (voice)Movie
Penn Zero: Part-Time Hero
2014Penn Zero: Part-Time Hero
as Coach Wallace (voice)TV
Lucky Stiff
2014Lucky Stiff
as Vinnie Di RuzzioMovie
TripTank
2014TripTank
as Doctor (voice)TV
Kirstie
2013Kirstie
as Stanford TempleTV
Drunk History
2013Drunk History
as William TweedTV
Stars in Shorts
2012Stars in Shorts
as Sid RosenthalMovie
Comedy Bang! Bang!
2012Comedy Bang! Bang!
as Inspector GantletTV
China, IL
2011China, IL
as Harold (voice)TV
Franklin & Bash
2011Franklin & Bash
as Carter LangTV
Harry's Law
2011Harry's Law
as Richard CrossTV
Not Your Time
2010Not Your Time
as Sid RosenthalMovie
Fish Hooks
2010Fish Hooks
as Mr. NibblesTV
Rock Slyde
2010Rock Slyde
as Mailman StanMovie
T
2010The Marriage Ref
as Self - PanelistTV
Community
2009Community
as Mountain ManTV
Meteor
2009Meteor
as Dr. ChetwynTV
The Grand
2007The Grand
as Dr. Yakov AchmedMovie
Farce of the Penguins
2006Farce of the Penguins
as Penguin on Belly (voz)Movie
Rachael Ray
2006Rachael Ray
as Self - GuestTV
Snoop Dogg's Hood of Horror
2006Snoop Dogg's Hood of Horror
as British Record MogulMovie
Ira & Abby
2006Ira & Abby
as Dr. Morris SapersteinMovie
Everybody Hates Chris
2005Everybody Hates Chris
as Principal EdwardsTV
Criminal Minds
2005Criminal Minds
as Prof. RothchildTV
Robot Chicken
2005Robot Chicken
as Krampus (voice)TV
American Dad!
2005American Dad!
as Mr. Orlando (voice)TV
A Christmas Carol
2004A Christmas Carol
as Jacob Marley / Marley's GhostMovie
Seinfeld: How It Began
2004Seinfeld: How It Began
as Self/George CostanzaMovie
Listen Up!
2004Listen Up!
as Tony KleinmanTV
T
2004The Tony Danza Show
as Self - GuestTV
Two and a Half Men
2003Two and a Half Men
as Dr. GoodmanTV
Agent Cody Banks
2003Agent Cody Banks
Executive ProducerMovie
Monk
2002Monk
as Marty EelsTV
The Hunchback of Notre Dame II
2002The Hunchback of Notre Dame II
as Gargoyle Hugo (voice)Movie
Shallow Hal
2001Shallow Hal
as Mauricio WilsonMovie
Bob Patterson
2001Bob Patterson
as Bob PattersonTV
The Legend of Tarzan
2001The Legend of Tarzan
as Zutho (voice)TV
On Edge
2001On Edge
as Zamboni PhilMovie
The Trumpet of the Swan
2001The Trumpet of the Swan
as Father (voice)Movie
Curb Your Enthusiasm
2000Curb Your Enthusiasm
as Jason AlexanderTV
Just Looking
1999Just Looking
DirectorMovie
Love and Action in Chicago
1999Love and Action in Chicago
as Frank BonnerMovie
Madeline: Lost in Paris
1999Madeline: Lost in Paris
as Uncle Horst / Henri (voice)Movie
Dilbert
1999Dilbert
as Catbert (voice)TV
Jingle Bells
1999Jingle Bells
as Elf (Voice)Movie
Hollywood Squares
1998Hollywood Squares
as Self - PanelistTV
Hercules
1998Hercules
as PoseidonTV
Denial
1998Denial
as Art WitzMovie
Titey
1998Titey
as Titey (voice)Movie
Cinderella
1997Cinderella
as LionelMovie
The Hunchback of Notre Dame
1996The Hunchback of Notre Dame
as Gargoyle Hugo (voice)Movie
Remember WENN
1996Remember WENN
as Alan BallingerTV
Dunston Checks In
1996Dunston Checks In
as Robert GrantMovie
Bye Bye Birdie
1995Bye Bye Birdie
as Albert J. PetersonMovie
The Last Supper
1995The Last Supper
as Anti-EnviromentMovie
For Better or Worse
1995For Better or Worse
as Michael MakeshiftMovie
The Return of Jafar
1994The Return of Jafar
as Abis Mal - the Chief of the Thieves (voice)Movie
Friends
1994Friends
as EarlTV
Blankman
1994Blankman
as Mr. StoneMovie
North
1994North
as North's DadMovie
The Paper
1994The Paper
as Marion SanduskyMovie
Duckman
1994Duckman
as Duckman (voice)TV
Aladdin
1994Aladdin
as Abis Mal (voice)TV
The Nanny
1993The Nanny
as JackTV
Coneheads
1993Coneheads
as Larry FarberMovie
Sexual Healing
1993Sexual Healing
as FrankMovie
For Goodness Sake
1993For Goodness Sake
as Electronics Store CustomerMovie
The Larry Sanders Show
1992The Larry Sanders Show
as Jason AlexanderTV
I Don't Buy Kisses Anymore
1992I Don't Buy Kisses Anymore
as Bernie FishbineMovie
Dinosaurs
1991Dinosaurs
as Grown Baby (voice)TV
Jacob's Ladder
1990Jacob's Ladder
as GearyMovie
White Palace
1990White Palace
as NeilMovie
Dream On
1990Dream On
as Randall TownsendTV
Pretty Woman
1990Pretty Woman
as Philip StuckeyMovie
The Simpsons
1989The Simpsons
as Bourbon Verlander (voice)TV
Seinfeld
1989Seinfeld
as George CostanzaTV
Favorite Son
1988Favorite Son
as Chris Van AllenTV
Everything's Relative
1987Everything's Relative
as Julian BeebyTV
Brighton Beach Memoirs
1986Brighton Beach Memoirs
as Pool Player #1Movie
The Mosquito Coast
1986The Mosquito Coast
as Hardware ClerkMovie
Rockabye
1986Rockabye
as Lt. Ernest FoyMovie
Jeopardy!
1984Jeopardy!
as SelfTV
Reading Rainbow
1983Reading Rainbow
as Self - Narrator (voice)TV
Senior Trip
1981Senior Trip
as PeteMovie
The Burning
1981The Burning
as DaveMovie
Saturday Night Live
1975Saturday Night Live
as Self - HostTV
Tony Awards
1956Tony Awards
as Self - PresenterTV
Golden Globe Awards
1944Golden Globe Awards
as Self - NomineeTV
Saturday TV Funhouse
Saturday TV Funhouse
as Titey (voice)TV