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.
Acting credits 54 titles
The Gettysburg Address
as Noah Brooks (voice)
Film
2025
Stealing Pulp Fiction
as Dr. Mendelbaum
Film
2025
4.0
The Electric State
as Ted / Wingman
Film
2025
6.5
Y llegaron de noche
as Carl Laemmle
Series
2024
7.1
Dick Van Dyke: 98 Years of Magic
as Self - Performer
Film
2023
7.8
Leo
as Jayda's Dad (voice)
Film
2023
7.3
Killing Me Softly with His Songs
as Self
Film
2022
5.0
Out of Office
Film
2022
6.1
Cinderella: The Reunion, A Special Edition of 20/20
as Self
Film
2022
8.0
History of the Sitcom
as Self - Actor
Series
2021
6.9
Faith Based
as Nicky Steele
Film
2020
4.4
My Boyfriend's Meds
as Dr. Sternbach
Film
2020
7.2
The Portuguese Kid
as Barry Dragonetti
Film
2018
2.0
Hit the Road
as Ken Swallow
Series
2017–
7.2
The Truth Is in the Stars
as Self
Film
2017
7.1
Best Worst Thing That Ever Could Have Happened...
as Self
Film
2016
7.5
For the Love of Spock
as Self
Film
2016
7.4
There's Something About Romcoms
as Self
Film
2016
6.0
Tom and Jerry: Back to Oz
as Mr. Bibb / The Nome King (voice)
Film
2016
6.0
The Last Laugh
as Self (archive footage) (uncredited)
Film
2016
7.0
Larry Gaye: Renegade Male Flight Attendant
as Larry's Dad
Film
2015
4.6
Misery Loves Comedy
as Self
Film
2015
6.1
Wild Card
as Pinky
Film
2015
5.7
China, IL
as Harold (voice)
Series
2011–2015
6.8
Meteor
as Dr. Chetwyn
Series
2009
6.1
Hachi: A Dog's Tale
as Carl
Film
2009
8.0
The Aristocrats
as Self
Film
2005
6.0
Listen Up!
as Tony Kleinman
Series
2004–2005
6.6
101 Dalmatians II: Patch's London Adventure
as Lightning (voice)
Film
2003
6.0
The Hunchback of Notre Dame II
as Gargoyle Hugo (voice)
Film
2002
5.4
Shallow Hal
as Mauricio Wilson
Film
2001
6.2
Bob Patterson
as Bob Patterson
Series
2001
7.0
The Adventures of Rocky & Bullwinkle
as Boris
Film
2000
4.3
Cinderella
as Lionel
Film
1997
6.6
The Hunchback of Notre Dame
as Gargoyle Hugo (voice)
Film
1996
7.1
Dunston Checks In
as Robert Grant
Film
1996
5.4
The Last Supper
as Anti-Enviroment
Film
1995
6.5
The Return of Jafar
as Abis Mal - the Chief of the Thieves (voice)
Film
1994
6.2
Blankman
as Mr. Stone
Film
1994
5.4
North
as North's Dad
Film
1994
5.0
The Paper
as Marion Sandusky
Film
1994
6.6
Duckman
as Duckman (voice)
Series
1994–1997
7.2
Coneheads
as Larry Farber
Film
1993
5.5
Jacob's Ladder
as Geary
Film
1990
7.4
White Palace
as Neil
Film
1990
6.5
Pretty Woman
as Philip Stuckey
Film
1990
7.4
Seinfeld
as George Costanza
Series
1989–1998
8.3
Favorite Son
as Chris Van Allen
Series
1988
4.6
Everything's Relative
as Julian Beeby
Series
1987
7.0
Brighton Beach Memoirs
as Pool Player #1
Film
1986
6.6
The Mosquito Coast
as Hardware Clerk
Film
1986
6.4
The Burning
as Dave
Film
1981
6.2
A Capitol Fourth
as Self
Series
1980–
Doom Scroll
Film
Noch offen
Keine Credits passen zu diesem Filter.
Noch keine angekündigten Titel.
Bekannt für
8.3
Series
Seinfeld
George Costanza
1989–1998
7.1
Film
The Hunchback of Notre Dame
Gargoyle Hugo (voice)
1996
6.5
Film
The Electric State
Ted / Wingman
2025
0.0
Film
Doom Scroll
7.2
Series
Duckman
Duckman (voice)
1994–1997
7.4
Film
Pretty Woman
Philip Stuckey
1990
8.0
Film
Hachi: A Dog's Tale
Carl
2009
5.7
Film
Wild Card
Pinky
2015
0.0
Series
A Capitol Fourth
Self
1980–
6.2
Film
Shallow Hal
Mauricio Wilson
2001
7.4
Film
Jacob's Ladder
Geary
1990
6.0
Film
Tom and Jerry: Back to Oz
Mr. Bibb / The Nome King (voice)
2016
6.6
Film
Brighton Beach Memoirs
Pool Player #1
1986
4.6
Film
Larry Gaye: Renegade Male Flight Attendant
Larry's Dad
2015
6.5
Film
The Last Supper
Anti-Enviroment
1995
6.1
Series
Meteor
Dr. Chetwyn
2009
5.5
Film
Coneheads
Larry Farber
1993
5.4
Film
Blankman
Mr. Stone
1994
7.3
Film
Leo
Jayda's Dad (voice)
2023
6.1
Film
Misery Loves Comedy
Self
2015
6.8
Series
China, IL
Harold (voice)
2011–2015
4.3
Film
The Adventures of Rocky & Bullwinkle
Boris
2000
0.0
Film
The Gettysburg Address
Noah Brooks (voice)
2025
6.4
Film
The Mosquito Coast
Hardware Clerk
1986
6.6
Series
Listen Up!
Tony Kleinman
2004–2005
6.2
Film
The Return of Jafar
Abis Mal - the Chief of the Thieves (voice)
1994
5.4
Film
The Hunchback of Notre Dame II
Gargoyle Hugo (voice)
2002
5.4
Film
Dunston Checks In
Robert Grant
1996
5.0
Film
North
North's Dad
1994
6.6
Film
Cinderella
Lionel
1997
6.5
Film
White Palace
Neil
1990
4.6
Series
Favorite Son
Chris Van Allen
1988
6.0
Film
The Aristocrats
Self
2005
6.0
Film
101 Dalmatians II: Patch's London Adventure
Lightning (voice)
2003
7.0
Series
Bob Patterson
Bob Patterson
2001
6.6
Film
The Paper
Marion Sandusky
1994
6.2
Film
The Burning
Dave
1981
7.0
Series
Everything's Relative
Julian Beeby
1987
7.1
Series
Y llegaron de noche
Carl Laemmle
2024
6.0
Film
There's Something About Romcoms
Self
2016
6.9
Series
History of the Sitcom
Self - Actor
2021
7.2
Series
Hit the Road
Ken Swallow
2017–
7.0
Film
The Last Laugh
Self (archive footage) (uncredited)
2016
7.8
Film
Dick Van Dyke: 98 Years of Magic
Self - Performer
2023
4.4
Film
Faith Based
Nicky Steele
2020
7.4
Film
For the Love of Spock
Self
2016
8.0
Film
Cinderella: The Reunion, A Special Edition of 20/20
Self
2022
7.2
Film
My Boyfriend's Meds
Dr. Sternbach
2020
6.1
Film
Out of Office
2022
7.1
Film
The Truth Is in the Stars
Self
2017
7.5
Film
Best Worst Thing That Ever Could Have Happened...
Self
2016
5.0
Film
Killing Me Softly with His Songs
Self
2022
2.0
Film
The Portuguese Kid
Barry Dragonetti
2018
4.0
Film
Stealing Pulp Fiction
Dr. Mendelbaum
2025