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Jason Alexander

Jason Alexander

Acting

Born: September 23, 1959Newark, New Jersey, USA

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

Jimmy

Louis B. Mayer

2026
The Gettysburg Address

The Gettysburg Address

Noah Brooks (voice)

2025
Paddy Chayefsky: Collector of Words

Paddy Chayefsky: Collector of Words

Self

2025
Stealing Pulp Fiction

Stealing Pulp Fiction

Dr. Mendelbaum

2025
The Electric State

The Electric State

Ted / Wingman

2025
Dick Van Dyke: 98 Years of Magic

Dick Van Dyke: 98 Years of Magic

Self - Performer

2023
Leo

Leo

Jayda's Dad (voice)

2023
The Conspiracy

The Conspiracy

2022
Killing Me Softly with His Songs

Killing Me Softly with His Songs

Self

2022
Out of Office

Out of Office

2022
Cinderella: The Reunion, A Special Edition of 20/20

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

Self

2022
Dunston Checks Out

Dunston Checks Out

Jason Alexander (archival footage)

2022
Broadway: Beyond the Golden Age

Broadway: Beyond the Golden Age

Self

2021
The Rocky Horror Musical Live Stream

The Rocky Horror Musical Live Stream

Narrator

2020
Faith Based

Faith Based

Nicky Steele

2020
My Boyfriend's Meds

My Boyfriend's Meds

Dr. Sternbach

2020
The Portuguese Kid

The Portuguese Kid

Barry Dragonetti

2018
Bucky and the Squirrels

Bucky and the Squirrels

Jason Alexander

2018
The Truth Is in the Stars

The Truth Is in the Stars

Self

2017
The Mark Lembeck Technique

The Mark Lembeck Technique

Mark Lembeck

2016
Best Worst Thing That Ever Could Have Happened...

Best Worst Thing That Ever Could Have Happened...

Self

2016
For the Love of Spock

For the Love of Spock

Self

2016
There's Something About Romcoms

There's Something About Romcoms

Self

2016
Tom and Jerry: Back to Oz

Tom and Jerry: Back to Oz

Mr. Bibb / The Nome King (voice)

2016
The Last Laugh

The Last Laugh

Self

2016
China, Il The Musical

China, Il The Musical

Harold

2015
Larry Gaye: Renegade Male Flight Attendant

Larry Gaye: Renegade Male Flight Attendant

Larry's Dad

2015
Misery Loves Comedy

Misery Loves Comedy

Self

2015
Wild Card

Wild Card

Pinky

2015
How Murray Saved Christmas

How Murray Saved Christmas

Doc Holiday (voice)

2014
Lucky Stiff

Lucky Stiff

Vinnie Di Ruzzio

2014
Stars in Shorts

Stars in Shorts

Sid Rosenthal

2012
National Lampoon's Another Dirty Movie

National Lampoon's Another Dirty Movie

Self (uncredited)

2012

Say It Ain't Solo

Self

2012
The Voyages of Young Doctor Dolittle

The Voyages of Young Doctor Dolittle

Eugene (voice)

2011
Dora the Explorer: Dora's Enchanted Forest Adventures

Dora the Explorer: Dora's Enchanted Forest Adventures

Owl (voice)

2011
A Fairly Odd Movie: Grow Up, Timmy Turner!

A Fairly Odd Movie: Grow Up, Timmy Turner!

Cosmo

2011
Not Your Time

Not Your Time

Sid Rosenthal

2010
Quantum Quest: A Cassini Space Odyssey

Quantum Quest: A Cassini Space Odyssey

Moronic (voice)

2010
Rock Slyde

Rock Slyde

Mailman Stan

2010
Hachi: A Dog's Tale

Hachi: A Dog's Tale

Carl

2009
Jerry Seinfeld: Submarine Captain

Jerry Seinfeld: Submarine Captain

Self

2007
The Grand

The Grand

Dr. Yakov Achmed

2007
Farce of the Penguins

Farce of the Penguins

Penguin on Belly (voz)

2006
Comedy Central Roast of William Shatner

Comedy Central Roast of William Shatner

Self - Roastmaster

2006
How to Go Out on a Date in Queens

How to Go Out on a Date in Queens

Johnny

2006
Snoop Dogg's Hood of Horror

Snoop Dogg's Hood of Horror

British Record Mogul

2006
Ira & Abby

Ira & Abby

Dr. Morris Saperstein

2006
Earth to America

Earth to America

self

2005
The Aristocrats

The Aristocrats

Self

2005
A Christmas Carol

A Christmas Carol

Jacob Marley / Marley's Ghost

2004
The Seinfeld Story

The Seinfeld Story

Self

2004

Kramer vs. Kramer: Kenny to Cosmo

Self

2004
Seinfeld: How It Began

Seinfeld: How It Began

Self/George Costanza

2004
The Very Best of America's Funniest Comedians

The Very Best of America's Funniest Comedians

Self (archive footage)

2003
101 Dalmatians II: Patch's London Adventure

101 Dalmatians II: Patch's London Adventure

Lightning (voice)

2003
The Man Who Saved Christmas

The Man Who Saved Christmas

A.C. Gilbert

2002
The Hunchback of Notre Dame II

The Hunchback of Notre Dame II

Gargoyle Hugo (voice)

2002
Being 'Shallow Hal'

Being 'Shallow Hal'

Self

2001
Shallow Hal

Shallow Hal

Mauricio Wilson

2001
On Edge

On Edge

Zamboni Phil

2001
The Trumpet of the Swan

The Trumpet of the Swan

Father (voice)

2001
Bravo Profiles: Penn and Teller

Bravo Profiles: Penn and Teller

Self

2001
The Adventures of Rocky & Bullwinkle

The Adventures of Rocky & Bullwinkle

Boris

2000
Let's Rap Fire Safety

Let's Rap Fire Safety

2000
Ultimate Trek: Star Trek's Greatest Moments

Ultimate Trek: Star Trek's Greatest Moments

Host

1999
The N.Y. Friars Club Roast of Jerry Stiller

The N.Y. Friars Club Roast of Jerry Stiller

Self - Roastmaster

1999
Larry David: Curb Your Enthusiasm

Larry David: Curb Your Enthusiasm

Self

1999
Love and Action in Chicago

Love and Action in Chicago

Frank Bonner

1999
Madeline: Lost in Paris

Madeline: Lost in Paris

Uncle Horst / Henri (voice)

1999
Sideshow: Alive on the Inside

Sideshow: Alive on the Inside

Narrator

1999
Jingle Bells

Jingle Bells

Elf (Voice)

1999
Denial

Denial

Art Witz

1998
Titey

Titey

Titey (voice)

1998
Cinderella

Cinderella

Lionel

1997
Love! Valour! Compassion!

Love! Valour! Compassion!

Buzz Hauser

1997
The Hunchback of Notre Dame

The Hunchback of Notre Dame

Gargoyle Hugo (voice)

1996
Dunston Checks In

Dunston Checks In

Robert Grant

1996

Sex, Censorship and the Silver Screen

Quote Reader

1996
Bye Bye Birdie

Bye Bye Birdie

Albert J. Peterson

1995
The Last Supper

The Last Supper

Anti-Enviroment

1995
For Better or Worse

For Better or Worse

Michael Makeshift

1995
A Tribute to Stephen Sondheim

A Tribute to Stephen Sondheim

1995
The Return of Jafar

The Return of Jafar

Abis Mal - the Chief of the Thieves (voice)

1994
Blankman

Blankman

Mr. Stone

1994
North

North

North's Dad

1994
Down on the Waterfront

Down on the Waterfront

1994
The Paper

The Paper

Marion Sandusky

1994
Coneheads

Coneheads

Larry Farber

1993
Sexual Healing

Sexual Healing

Frank

1993
For Goodness Sake

For Goodness Sake

Electronics Store Customer

1993
I Don't Buy Kisses Anymore

I Don't Buy Kisses Anymore

Bernie Fishbine

1992
Jacob's Ladder

Jacob's Ladder

Geary

1990
White Palace

White Palace

Neil

1990
Pretty Woman

Pretty Woman

Philip Stuckey

1990
Brighton Beach Memoirs

Brighton Beach Memoirs

Pool Player #1

1986
The Mosquito Coast

The Mosquito Coast

Hardware Clerk

1986
Rockabye

Rockabye

Lt. Ernest Foy

1986
Senior Trip

Senior Trip

Pete

1981
The Burning

The Burning

Dave

1981