Jason Alexander
Acting1959Newark, 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.
Known For
Acting History
Future
The Sisters Rosensweig
as Mervyn
Saturday TV Funhouse
TVas Titey (voice)
2026
Jimmy
as Louis B. Mayer
2025
The Electric State
as Ted / Wingman
The Gettysburg Address
as Noah Brooks (voice)
Stealing Pulp Fiction
as Dr. Mendelbaum
The Bad Guys: Breaking In
TVas Mysterious Figure (voice)• 1 eps
LEGO Marvel Avengers: Strange Tails
TVas Magneto (voice)
2024
Rock, Paper, Scissors
TVas Jonathan Fartjoke (voice)• 1 eps
Star Trek: Prodigy
TVas Counselor Noum (voice) / Doctor Noum (voice)• 16 eps
Y llegaron de noche
TVas Carl Laemmle
2023
Leo
as Jayda's Dad (voice)
Dick Van Dyke: 98 Years of Magic
as Self - Performer
History of the World: Part II
TVas Maurice Cheeks• 1 eps
2022
Dunston Checks Out
as Jason Alexander (archival footage)
The $100,000 Pyramid
TVas Self• 1 eps
2021
Celebrity Wheel of Fortune
TVas Self - Contestant• 1 eps
The Conners
TVas Pastor Phil• 2 eps
History of the Sitcom
TVas Self - Actor
The Problem with Jon Stewart
TVas Jeff Bezos• 1 eps
The Movies That Made Us
TVas Self• 1 eps
2020
My Boyfriend's Meds
as Dr. Sternbach
Faith Based
as Nicky Steele
The Rocky Horror Musical Live Stream
as Narrator
To Tell the Truth
TVas Self - Panelist• 2 eps
Stars in the House
TVas Self - Special Guest• 1 eps
2019
The Marvelous Mrs. Maisel
TVas Asher Friedman• 3 eps
Harley Quinn
TVas Sy Borgman (voice)• 13 eps
Robot Chicken
TVas Krampus (voice)• 1 eps
Mad About You
TVas Jason Alexander
2018
Bucky and the Squirrels
as Jason Alexander
The Portuguese Kid
as Barry Dragonetti
Young Sheldon
TVas Gene Lundy• 5 eps
The Orville
TVas Olix• 2 eps
2017
The Truth Is in the Stars
as Self
The Simpsons
TVas Bourbon Verlander (voice)• 1 eps
Hit the Road
TVas Ken Swallow
Kody Kapow
TVas Goji (voice)
Dinner with Dad
TVas Jason Alexander
Dinner with Dad
TVWriter
2016
Tom and Jerry: Back to Oz
as Mr. Bibb / The Nome King (voice)
The Last Laugh
as Self
For the Love of Spock
as Self
The Mark Lembeck Technique
as Mark Lembeck
TripTank
TVas Doctor (voice)• 1 eps
Match Game
TVas Self - Panelist• 6 eps
The Mark Lembeck Technique
Consulting Producer
2015
Larry Gaye: Renegade Male Flight Attendant
as Larry's Dad
Misery Loves Comedy
as Self
Wild Card
as Pinky
China, Il The Musical
as Harold
The Grinder
TVas Cliff Bemis
Drunk History
TVas William Tweed• 1 eps
Talking Dead
TVas Self• 1 eps
Penn Zero: Part-Time Hero
TVas Coach Wallace (voice)• 1 eps
China, IL
TVas Harold (voice)• 10 eps
Big Time in Hollywood, Fl
TVas Jason Alexander• 1 eps
The Late Late Show with James Corden
TVas Self
2014
How Murray Saved Christmas
as Doc Holiday (voice)
Lucky Stiff
as Vinnie Di Ruzzio
Comedians in Cars Getting Coffee
TVas Self• 1 eps
The Tom and Jerry Show
TVas Rick (voice)• 52 eps
Late Night with Seth Meyers
TVas Self - Guest
Comedy Bang! Bang!
TVas Inspector Gantlet• 1 eps
2013
2012
Dirty Movie II
as Self (uncredited)
Stars in Shorts
as Sid Rosenthal
Say It Ain't Solo
as Self
Two and a Half Men
TVas Dr. Goodman• 1 eps
2011
Dora the Explorer: Dora's Enchanted Forest Adventures
as Owl (voice)
The Voyages of Young Doctor Dolittle
as Eugene (voice)
Franklin & Bash
TVas Carter Lang• 1 eps
Harry's Law
TVas Richard Cross• 1 eps
2010
Quantum Quest: A Cassini Space Odyssey
as Moronic (voice)
Rock Slyde
as Mailman Stan
Not Your Time
as Sid Rosenthal
American Dad!
TVas Mr. Orlando (voice) / Sal (voice)• 1 eps
The Marriage Ref
TVas Self - Panelist• 1 eps
Fish Hooks
TVas Mr. Nibbles (voice)• 3 eps
Mike & Molly
TVDirector
2009
Hachi: A Dog's Tale
as Carl
Meteor
TVas Dr. Chetwyn
2008
Shatner's Raw Nerve
TVas Self
The New Adventures of Old Christine
TVas Dr. Palmer• 1 eps
Criminal Minds
TVas Prof. Rothchild• 1 eps
2007
2006
Snoop Dogg's Hood of Horror
as British Record Mogul
Ira & Abby
as Dr. Morris Saperstein
Farce of the Penguins
as Penguin on Belly (voz)
How to Go Out on a Date in Queens
as Johnny
Comedy Central Roast of William Shatner
as Self - Roastmaster
Everybody Hates Chris
TVas Principal Edwards• 2 eps
Rachael Ray
TVas Self - Guest
Campus Ladies
TVDirector
2005
The Aristocrats
as Self
Earth to America
as self
People's Choice Awards
TVas Self - Host• 1 eps
Monk
TVas Marty Eels• 1 eps
Criminal Minds
TVDirector
2004
A Christmas Carol
as Jacob Marley / Marley's Ghost
Seinfeld: How It Began
as Self/George Costanza
The Seinfeld Story
as Self
The Tony Danza Show
TVas Self - Guest• 3 eps
Good Day Live
TVas Self• 1 eps
Listen Up!
TVas Tony Kleinman
Real Time with Bill Maher
TVas Self• 8 eps
Agent Cody Banks 2: Destination London
Executive Producer
2003
101 Dalmatians II: Patch's London Adventure
as Lightning (voice)
The Very Best of America's Funniest Comedians
as Self (archive footage)
Malcolm in the Middle
TVas Leonard• 1 eps
Tony Awards
TVas Self - Presenter• 1 eps
Jimmy Kimmel Live!
TVas Self
The Ellen DeGeneres Show
TVas Self
Agent Cody Banks
Executive Producer
2002
The Hunchback of Notre Dame II
as Gargoyle Hugo (voice)
The Man Who Saved Christmas
as A.C. Gilbert
The Twilight Zone
TVas Patient• 1 eps
2001
The Trumpet of the Swan
as Father (voice)
On Edge
as Zamboni Phil
Shallow Hal
as Mauricio Wilson
Being 'Shallow Hal'
as Self
Friends
TVas Earl• 1 eps
The Legend of Tarzan
TVas Zutho (voice)• 1 eps
The Late Late Show with Craig Kilborn
TVas Self - Guest• 1 eps
Critics Choice Awards
TVas Self
Bob Patterson
TVas Bob Patterson
Curb Your Enthusiasm
TVas Jason Alexander• 5 eps
Bob Patterson
TVStory
Bob Patterson
TVCreator
Bob Patterson
TVExecutive Producer
Bob Patterson
TVTeleplay
2000
Reading Rainbow
TVas Self - Narrator (voice)• 1 eps
1999
Madeline: Lost in Paris
as Uncle Horst / Henri (voice)
Jingle Bells
as Elf (Voice)
Love and Action in Chicago
as Frank Bonner
Sideshow: Alive on the Inside
as Narrator
The N.Y. Friars Club Roast of Jerry Stiller
as Self - Roastmaster
Dilbert
TVas Catbert (voice)• 9 eps
Star Trek: Voyager
TVas Kurros• 1 eps
Just Looking
Director
1998
Denial
as Art Witz
Titey
as Titey (voice)
Hercules
TVas Poseidon (voice)• 5 eps
Hollywood Squares
TVas Self - Panelist
1997
Cinderella
as Lionel
Love! Valour! Compassion!
as Buzz Hauser
1996
The Hunchback of Notre Dame
as Gargoyle Hugo (voice)
Dunston Checks In
as Robert Grant
Sex, Censorship and the Silver Screen
as Quote Reader
The Nanny
TVas Jack• 1 eps
Muppets Tonight
TVas Self• 2 eps
Remember WENN
TVas Alan Ballinger
Remember WENN
TVDirector
1995
The Last Supper
as Anti-Enviroment
For Better or Worse
as Michael Makeshift
Bye Bye Birdie
as Albert J. Peterson
For Better or Worse
Director
1994
North
as North's Dad
The Paper
as Marion Sandusky
Blankman
as Mr. Stone
The Return of Jafar
as Abis Mal - the Chief of the Thieves (voice)
The Larry Sanders Show
TVas Jason Alexander• 1 eps
Duckman
TVas Duckman (voice)• 70 eps
Aladdin
TVas Abis Mal (voice) / Abis Mal / Abnor Mal (voice) / Captain Albatross (voice)• 1 eps
1993
Coneheads
as Larry Farber
For Goodness Sake
as Electronics Store Customer
Sexual Healing
as Frank
Dream On
TVas Randall Townsend• 1 eps
Golden Globe Awards
TVas Self - Nominee• 1 eps
Dinosaurs
TVas Grown Baby (voice) / Gus Molehill (voice) / The Job Wizard (voice) / Sexual Harris (voice) / UFO! Host / Announcer (voice) / General H. Norman Conquest (voice) / Stu (voice)• 1 eps
1992
I Don't Buy Kisses Anymore
as Bernie Fishbine
1990
1988
1987
Everything's Relative
TVas Julian Beeby
1986
1982
Late Night with David Letterman
TVas Self
1981
The Burning
as Dave
Senior Trip
as Pete
1980
A Capitol Fourth
TVas Self
1975
Saturday Night Live
TVas Self - Cameo (uncredited) / Self - Host
1949
The Emmy Awards
TVas Self