Jason Alexander

Jason Alexander

Known For

Pretty Woman

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 Featuring Jason Alexander

Jimmy

Jimmy (2026)

as Louis B. Mayer
The Gettysburg Address

The Gettysburg Address (2025)

as Noah Brooks (voice)
Leo

Leo (2023)

as Jayda's Dad (voice)
Dunston Checks Out

Dunston Checks Out (2022)

as Jason Alexander (archival footage)
Faith Based

Faith Based (2020)

as Nicky Steele
The Portuguese Kid

The Portuguese Kid (2018)

as Barry Dragonetti
Tom and Jerry: Back to Oz

Tom and Jerry: Back to Oz (2016)

as Mr. Bibb / The Nome King (voice)
Lucky Stiff

Lucky Stiff (2014)

as Vinnie Di Ruzzio
Not Your Time

Not Your Time (2010)

as Sid Rosenthal
Rock Slyde

Rock Slyde (2010)

as Mailman Stan
The Grand

The Grand (2007)

as Dr. Yakov Achmed
Farce of the Penguins

Farce of the Penguins (2006)

as Penguin on Belly (voz)
Ira & Abby

Ira & Abby (2006)

as Dr. Morris Saperstein
A Christmas Carol

A Christmas Carol (2004)

as Jacob Marley / Marley's Ghost
Seinfeld: How It Began

Seinfeld: How It Began (2004)

as Self/George Costanza
Shallow Hal

Shallow Hal (2001)

as Mauricio Wilson
On Edge

On Edge (2001)

as Zamboni Phil
Madeline: Lost in Paris

Madeline: Lost in Paris (1999)

as Uncle Horst / Henri (voice)
Denial

Denial (1998)

as Art Witz
Titey

Titey (1998)

as Titey (voice)
Bye Bye Birdie

Bye Bye Birdie (1995)

as Albert J. Peterson
The Last Supper

The Last Supper (1995)

as Anti-Enviroment
For Better or Worse

For Better or Worse (1995)

as Michael Makeshift
The Return of Jafar

The Return of Jafar (1994)

as Abis Mal - the Chief of the Thieves (voice)
Blankman

Blankman (1994)

as Mr. Stone
North

North (1994)

as North's Dad
The Paper

The Paper (1994)

as Marion Sandusky
Coneheads

Coneheads (1993)

as Larry Farber
For Goodness Sake

For Goodness Sake (1993)

as Electronics Store Customer
Pretty Woman

Pretty Woman (1990)

as Philip Stuckey
Rockabye

Rockabye (1986)

as Lt. Ernest Foy