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Jason Alexander

Jason Alexander

Acting September 23, 1959 (67 years old) 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.

Movies 104

Jimmy 9.3

Jimmy

as Louis B. Mayer

2026
Pretty Woman 7.4

Pretty Woman

as Philip Stuckey

1990
Hachi: A Dog's Tale 8.0

Hachi: A Dog's Tale

as Carl

2009
The Hunchback of Notre Dame 7.1

The Hunchback of Notre Dame

as Gargoyle Hugo (voice)

1996
The Electric State 6.5

The Electric State

as Ted / Wingman

2025
Wild Card 5.7

Wild Card

as Pinky

2015
Shallow Hal 6.2

Shallow Hal

as Mauricio Wilson

2001
The Return of Jafar 6.2

The Return of Jafar

as Abis Mal (voice)

1994
Leo 7.3

Leo

as Jayda's Dad (voice)

2023
Jacob's Ladder 7.4

Jacob's Ladder

as Geary

1990
Coneheads 5.5

Coneheads

as Larry Farber

1993
101 Dalmatians II: Patch's London Adventure 6.0

101 Dalmatians II: Patch's London Adventure

as Lightning (voice)

2003
The Hunchback of Notre Dame II 5.4

The Hunchback of Notre Dame II

as Gargoyle Hugo (voice)

2002
The Mosquito Coast 6.4

The Mosquito Coast

as Hardware Clerk

1986
The Adventures of Rocky & Bullwinkle 4.3

The Adventures of Rocky & Bullwinkle

as Boris

2000
The Burning 6.2

The Burning

as Dave

1981
The Paper 6.6

The Paper

as Marion Sandusky

1994
North 5.0

North

as North's Dad

1994
White Palace 6.7

White Palace

as Neil

1990
Tom and Jerry: Back to Oz 6.0

Tom and Jerry: Back to Oz

as Mr. Bibb / The Nome King (voice)

2016
A Fairly Odd Movie: Grow Up, Timmy Turner! 4.8

A Fairly Odd Movie: Grow Up, Timmy Turner!

as Cosmo

2011
The Last Supper 6.5

The Last Supper

as Anti-Enviroment

1995
Dunston Checks In 5.4

Dunston Checks In

as Robert Grant

1996
Cinderella 6.6

Cinderella

as Lionel

1997
For the Love of Spock 7.4

For the Love of Spock

as Self

2016
Snoop Dogg's Hood of Horror 4.7

Snoop Dogg's Hood of Horror

as British Record Mogul

2006
Blankman 5.4

Blankman

as Mr. Stone

1994
The Aristocrats 5.9

The Aristocrats

as Self

2005
Farce of the Penguins 4.3

Farce of the Penguins

as Penguin on Belly (voice)

2006
The Grand 5.8

The Grand

as Dr. Yakov Achmed

2007
Larry David: Curb Your Enthusiasm 7.5

Larry David: Curb Your Enthusiasm

as Self

1999
The Gettysburg Address

The Gettysburg Address

as Noah Brooks (voice)

2025
Broadway: The Next Generation

Broadway: The Next Generation

as Self

Larry Gaye: Renegade Male Flight Attendant 4.6

Larry Gaye: Renegade Male Flight Attendant

as Larry's Dad

2015
Broadway: Beyond the Golden Age

Broadway: Beyond the Golden Age

as Self

2021
The Trumpet of the Swan 5.6

The Trumpet of the Swan

as Father (voice)

2001
Leo 2

Leo 2

A Christmas Carol 6.4

A Christmas Carol

as Jacob Marley / Marley's Ghost

2004
My Boyfriend's Meds 7.2

My Boyfriend's Meds

as Dr. Sternbach

2020
To Kill a Nazi

To Kill a Nazi

as Narrator

2026
National Lampoon's Another Dirty Movie 2.2

National Lampoon's Another Dirty Movie

as Self (uncredited)

2012
Out of Office 6.4

Out of Office

2022
Brighton Beach Memoirs 6.6

Brighton Beach Memoirs

as Pool Player #1

1986
Comedy Central Roast of William Shatner 6.5

Comedy Central Roast of William Shatner

as Self - Roastmaster

2006
Dick Van Dyke: 98 Years of Magic 7.1

Dick Van Dyke: 98 Years of Magic

as Self - Performer

2023
Madeline: Lost in Paris 6.8

Madeline: Lost in Paris

as Uncle Horst / Henri (voice)

1999
Misery Loves Comedy 6.1

Misery Loves Comedy

as Self

2015
Love! Valour! Compassion! 6.3

Love! Valour! Compassion!

as Buzz Hauser

1997
Killing Me Softly with His Songs 5.0

Killing Me Softly with His Songs

as Self

2022
Ira & Abby 5.6

Ira & Abby

as Dr. Morris Saperstein

2006
Earth to America 7.7

Earth to America

as self

2005
For Better or Worse 4.7

For Better or Worse

as Michael Makeshift

1995
The N.Y. Friars Club Roast of Jerry Stiller 5.7

The N.Y. Friars Club Roast of Jerry Stiller

as Self - Roastmaster

1999
Denial 4.6

Denial

as Art Witz

1998
Jingle Bells 6.5

Jingle Bells

as Elf (Voice)

1999
The Last Laugh 7.0

The Last Laugh

as Self (archive footage) (uncredited)

2016
The Truth Is in the Stars 6.5

The Truth Is in the Stars

as Self

2017
How Murray Saved Christmas 6.3

How Murray Saved Christmas

as Doc Holiday (voice)

2014
Paddy Chayefsky: Collector of Words 7.0

Paddy Chayefsky: Collector of Words

as Self

2025
Stealing Pulp Fiction 4.0

Stealing Pulp Fiction

as Dr. Mendelbaum

2025
Cinderella: The Reunion, A Special Edition of 20/20 7.8

Cinderella: The Reunion, A Special Edition of 20/20

as Self

2022
Bye Bye Birdie 6.2

Bye Bye Birdie

as Albert J. Peterson

1995
How to Go Out on a Date in Queens 2.6

How to Go Out on a Date in Queens

as Johnny

2006
The Man Who Saved Christmas 6.2

The Man Who Saved Christmas

as A.C. Gilbert

2002
Stars in Shorts 6.0

Stars in Shorts

as Sid Rosenthal

2012
Love and Action in Chicago 4.9

Love and Action in Chicago

as Frank Bonner

1999
The Voyages of Young Doctor Dolittle 2.0

The Voyages of Young Doctor Dolittle

as Eugene (voice)

2011
Rock Slyde 5.4

Rock Slyde

as Mailman Stan

2010
Titey 7.0

Titey

as Titey (voice)

1998
Not Your Time 1.0

Not Your Time

as Sid Rosenthal

2010
China, Il The Musical

China, Il The Musical

as Harold

2015
There's Something About Romcoms 6.0

There's Something About Romcoms

as Self

2016
Kramer vs. Kramer: Kenny to Cosmo 7.0

Kramer vs. Kramer: Kenny to Cosmo

as Self

2004
Best Worst Thing That Ever Could Have Happened... 7.5

Best Worst Thing That Ever Could Have Happened...

as Self

2016
Dora the Explorer: Dora's Enchanted Forest Adventures 10.0

Dora the Explorer: Dora's Enchanted Forest Adventures

as Owl (voice)

2011
Faith Based 4.7

Faith Based

as Nicky Steele

2020
A Tribute to Stephen Sondheim

A Tribute to Stephen Sondheim

1995
I Don't Buy Kisses Anymore 5.0

I Don't Buy Kisses Anymore

as Bernie Fishbine

1992
The Seinfeld Story 7.4

The Seinfeld Story

as Self

2004
Senior Trip 4.1

Senior Trip

as Pete

1981
Bucky and the Squirrels

Bucky and the Squirrels

as Jason Alexander

2018
Rockabye 8.2

Rockabye

as Lt. Ernest Foy

1986
Jerry Seinfeld: Submarine Captain 6.5

Jerry Seinfeld: Submarine Captain

as Self

2007
The Rocky Horror Musical Live Stream 4.8

The Rocky Horror Musical Live Stream

as Narrator

2020
Sideshow: Alive on the Inside

Sideshow: Alive on the Inside

as Narrator

1999
Let's Rap Fire Safety 6.5

Let's Rap Fire Safety

as Seemore Smoke (voice)

2000
Lucky Stiff 4.4

Lucky Stiff

as Vinnie Di Ruzzio

2014
Bravo Profiles: Penn and Teller

Bravo Profiles: Penn and Teller

as Self

2001
The Conspiracy

The Conspiracy

2022
Down on the Waterfront 6.5

Down on the Waterfront

1994
Ultimate Trek: Star Trek's Greatest Moments 4.0

Ultimate Trek: Star Trek's Greatest Moments

as Host

1999
Seinfeld: How It Began 7.8

Seinfeld: How It Began

as Self/George Costanza

2004
The Very Best of America's Funniest Comedians

The Very Best of America's Funniest Comedians

as Self (archive footage)

2003
Sexual Healing 10.0

Sexual Healing

as Frank

1993
Being 'Shallow Hal' 8.0

Being 'Shallow Hal'

as Self

2001
The Mark Lembeck Technique

The Mark Lembeck Technique

as Mark Lembeck

2016
Say It Ain't Solo 2.0

Say It Ain't Solo

as Self

2012
The Making of Disney's The Hunchback of Notre Dame 9.0

The Making of Disney's The Hunchback of Notre Dame

1996
Dunston Checks Out

Dunston Checks Out

as Jason Alexander (archival footage)

2022
The Portuguese Kid 2.0

The Portuguese Kid

as Barry Dragonetti

2018
On Edge 5.2

On Edge

as Zamboni Phil

2001
The Sisters Rosensweig

The Sisters Rosensweig

as Mervyn

For Goodness Sake 9.5

For Goodness Sake

as Electronics Store Customer

1993
Doom Scroll

Doom Scroll

TV Shows 127

The Simpsons 8.0

The Simpsons

as Bourbon Verlander (voice)

1989
Criminal Minds 8.3

Criminal Minds

as Prof. Rothchild

2005
Seinfeld 8.2

Seinfeld

as George Costanza

1989
Monk 7.9

Monk

as Marty Eels

2002
Late Night with Seth Meyers 5.1

Late Night with Seth Meyers

as Self - Guest

2014
The Late Show with Stephen Colbert 6.1

The Late Show with Stephen Colbert

as Self - Guest

2015
Friends 8.4

Friends

as Earl

1994
American Dad! 7.0

American Dad!

as Mr. Orlando (voice)

2005
American Dad! 7.0

American Dad!

as Sal (voice)

2005
Saturday Night Live 6.9

Saturday Night Live

as Self - Host

1975
Saturday Night Live 6.9

Saturday Night Live

as Titey (voice)

1975
Saturday Night Live 6.9

Saturday Night Live

as Self (uncredited)

1975
The Late Late Show with Craig Ferguson 6.9

The Late Late Show with Craig Ferguson

as Self

2005
Jeopardy! 6.9

Jeopardy!

as Self

1984
Jeopardy! 6.9

Jeopardy!

as Self - Clue Presenter

1984
Hollywood Squares 7.6

Hollywood Squares

as Self - Panelist

1998
Real Time with Bill Maher 6.0

Real Time with Bill Maher

as Self

2003
Two and a Half Men 7.4

Two and a Half Men

as Dr. Goodman

2003
The Late Late Show with James Corden 5.1

The Late Late Show with James Corden

as Self

2015
LIVE with Kelly and Mark 5.6

LIVE with Kelly and Mark

as Self - Guest

1988
Jimmy Kimmel Live! 5.3

Jimmy Kimmel Live!

as Self

2003
Young Sheldon 8.0

Young Sheldon

as Gene Lundy

2017
Late Night with David Letterman 6.2

Late Night with David Letterman

as Self

1982
Star Trek: Voyager 7.8

Star Trek: Voyager

as Kurros

1995
The Ellen DeGeneres Show 5.5

The Ellen DeGeneres Show

as Self

2003
The Tom and Jerry Show 7.4

The Tom and Jerry Show

as Rick (voice)

2014
Curb Your Enthusiasm 8.1

Curb Your Enthusiasm

as Jason Alexander

2000
Robot Chicken 7.6

Robot Chicken

as Krampus (voice)

2005
Malcolm in the Middle 8.5

Malcolm in the Middle

as Leonard

2000
The Nanny 8.0

The Nanny

as Jack

1993
Community 8.0

Community

as Mountain Man

2009
Good Day Live 3.8

Good Day Live

as Self

2001
Golden Globe Awards 7.0

Golden Globe Awards

as Self - Nominee

1944
Tony Awards

Tony Awards

as Self - Presenter

1956
Rock, Paper, Scissors 6.0

Rock, Paper, Scissors

as Jonathan Fartjoke (voice)

2024
Harley Quinn 8.3

Harley Quinn

as Sy Borgman (voice)

2019
The Orville 7.6

The Orville

as Olix

2017
Newhart 7.2

Newhart

1982
Newhart 7.2

Newhart

as Ramming

1982
Dinosaurs 7.8

Dinosaurs

as Grown Baby (voice)

1991
Dinosaurs 7.8

Dinosaurs

as Stu (voice)

1991
Dinosaurs 7.8

Dinosaurs

as The Job Wizard (voice)

1991
Dinosaurs 7.8

Dinosaurs

as Gus Molehill (voice)

1991
Dinosaurs 7.8

Dinosaurs

as Sexual Harris (voice)

1991
Dinosaurs 7.8

Dinosaurs

as General H. Norman Conquest (voice)

1991
Dinosaurs 7.8

Dinosaurs

as UFO! Host / Announcer (voice)

1991
Everybody Hates Chris 8.1

Everybody Hates Chris

as Principal Edwards

2005
The Cleveland Show 5.9

The Cleveland Show

2009
Aladdin 7.0

Aladdin

as Abis Mal (voice)

1994
Aladdin 7.0

Aladdin

as Captain Albatross (voice)

1994
Aladdin 7.0

Aladdin

as Abis Mal / Abnor Mal (voice)

1994
Fish Hooks 6.4

Fish Hooks

as Mr. Nibbles

2010
Fish Hooks 6.4

Fish Hooks

as Mr. Nibbles (voice)

2010
The Marvelous Mrs. Maisel 8.1

The Marvelous Mrs. Maisel

as Asher Friedman

2017
The Tony Danza Show 6.4

The Tony Danza Show

as Self - Guest

2004
The New Adventures of Old Christine 7.2

The New Adventures of Old Christine

as Dr. Palmer

2006
The Conners 6.9

The Conners

as Pastor Phil

2018
The Larry Sanders Show 7.8

The Larry Sanders Show

as Jason Alexander

1992
Duckman 7.3

Duckman

as Duckman (voice)

1994
Stars in the House

Stars in the House

as Self

2020
Stars in the House

Stars in the House

as Self - Special Guest

2020
Hercules 6.9

Hercules

as Poseidon

1998
Hercules 6.9

Hercules

as Poseidon (voice)

1998
Comedy Bang! Bang! 6.4

Comedy Bang! Bang!

as Inspector Gantlet

2012
The Twilight Zone 7.2

The Twilight Zone

as Patient

2002
Talking Dead 7.2

Talking Dead

as Self

2011
Reading Rainbow 8.4

Reading Rainbow

as Self - Narrator (voice)

1983
The $100,000 Pyramid 7.0

The $100,000 Pyramid

as Self

2016
Franklin & Bash 7.3

Franklin & Bash

as Carter Lang

2011
The Late Late Show with Craig Kilborn 5.3

The Late Late Show with Craig Kilborn

as Self - Guest

1999
Drunk History 6.9

Drunk History

as William Tweed

2013
Disney's House of Mouse 7.7

Disney's House of Mouse

2001
Rachael Ray 5.1

Rachael Ray

as Self - Guest

2006
Comedians in Cars Getting Coffee 7.1

Comedians in Cars Getting Coffee

as Self

2012
To Tell the Truth 5.8

To Tell the Truth

as Self - Panelist

2016
Star Trek: Prodigy 7.2

Star Trek: Prodigy

as Doctor Noum (voice)

2021
Star Trek: Prodigy 7.2

Star Trek: Prodigy

as Counselor Noum (voice)

2021
Match Game 6.5

Match Game

as Self - Panelist

2016
People's Choice Awards 8.2

People's Choice Awards

as Self - Host

1975
Dream On 6.9

Dream On

as Randall Townsend

1990
Penn Zero: Part-Time Hero 7.2

Penn Zero: Part-Time Hero

as Coach Wallace (voice)

2014
Celebrity Wheel of Fortune 7.1

Celebrity Wheel of Fortune

as Self - Contestant

2021
The Legend of Tarzan 7.1

The Legend of Tarzan

as Zutho (voice)

2001
Harry's Law 7.5

Harry's Law

as Richard Cross

2011
Hollywood Game Night 6.5

Hollywood Game Night

as Self

2013
Son of the Beach 6.3

Son of the Beach

2000
Who Wants to Be a Millionaire 7.8

Who Wants to Be a Millionaire

as Self - Contestant

2020
The Bad Guys: The Series 7.0

The Bad Guys: The Series

as Mysterious Figure (voice)

2025
The Bad Guys: The Series 7.0

The Bad Guys: The Series

as D.B. Cougar (voice)

2025
History of the World: Part II 5.7

History of the World: Part II

as Maurice Cheeks

2023
China, IL 6.8

China, IL

as Harold (voice)

2011
Mating Season 8.0

Mating Season

as Alan (voice)

2026
Dilbert 6.8

Dilbert

as Catbert (voice)

1999
Muppets Tonight 7.5

Muppets Tonight

as Self

1996
Remember WENN 7.8

Remember WENN

as Alan Ballinger

1996
The Movies That Made Us 7.3

The Movies That Made Us

as Self

2019
The Huntress 5.6

The Huntress

2000
TripTank 5.2

TripTank

as Doctor (voice)

2014
Primetime Glick 7.2

Primetime Glick

2001
The Grinder 6.7

The Grinder

as Cliff Bemis

2015
Critics Choice Awards 7.9

Critics Choice Awards

as Self

2001
Talkshow with Spike Feresten 5.5

Talkshow with Spike Feresten

2006
The Marriage Ref 3.8

The Marriage Ref

as Self - Panelist

2010
The Problem with Jon Stewart 7.2

The Problem with Jon Stewart

as Jeff Bezos

2021
Listen Up! 6.2

Listen Up!

as Tony Kleinman

2004
Shatner's Raw Nerve 4.0

Shatner's Raw Nerve

as Self

2008
A Capitol Fourth

A Capitol Fourth

as Self

1980
Kirstie 5.0

Kirstie

as Stanford Temple

2013
E/R 5.7

E/R

as Harold Stickley

1984
E/R 5.7

E/R

1984
The Emmy Awards 7.9

The Emmy Awards

as Self

1949
LEGO Marvel Avengers: Strange Tails 6.3

LEGO Marvel Avengers: Strange Tails

as Magneto (voice)

2025
Meteor 6.1

Meteor

as Dr. Chetwyn

2009
Mad About You 8.2

Mad About You

as Jason Alexander

2019
Thank God You're Here

Thank God You're Here

as Self

2007
Kody Kapow

Kody Kapow

as Goji (voice)

2017
Big Time in Hollywood, Fl 7.0

Big Time in Hollywood, Fl

as Jason Alexander

2015
History of the Sitcom 6.9

History of the Sitcom

as Self - Actor

2021
Everything's Relative 7.0

Everything's Relative

as Julian Beeby

1987
Favorite Son 5.0

Favorite Son

as Chris Van Allen

1988
Bob Patterson 7.0

Bob Patterson

as Bob Patterson

2001
Where My Dogs At? 7.5

Where My Dogs At?

2006
Hit the Road 7.2

Hit the Road

as Ken Swallow

2017
Y llegaron de noche 7.2

Y llegaron de noche

as Carl Laemmle

2024
Saturday TV Funhouse 10.0

Saturday TV Funhouse

as Titey (voice)

Step It Up and Dance

Step It Up and Dance

2008
Dinner with Dad

Dinner with Dad

as Jason Alexander

2017

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