Jason Alexander
Jay Scott Greenspan, 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










Credits
-
Meteor FutureDr. Chetwyn★ NR
-
The Sisters Rosensweig FutureMervyn★ NR
-
Leo 2 Future★ NR
-
Saturday TV Funhouse FutureTitey (voice)★ 10
-
Noah Brooks (voice)★ NR
-
The Electric State 2025Ted / Wingman★ 6.6
-
Self★ NR
-
Dr. Mendelbaum★ NR
-
Y llegaron de noche 2024Carl Laemmle★ 7
-
Jonathan Fartjoke (voice)★ 9
-
Self - Performer★ 7.4
-
Leo 2023Jayda's Dad (voice)★ 7.4
-
Maurice Cheeks★ 5.6
-
The Conspiracy 2022★ NR
-
Self★ 5
-
Out of Office 2022★ 6.1
-
Self★ 7.8
-
Star Trek: Prodigy 2021Doctor Noum (voice)★ 7.3
-
Self★ NR
-
Self - Actor★ 7
-
Self - Contestant★ 7.1
-
Narrator★ 6
-
Faith Based 2020Nicky Steele★ 4.8
-
Stars in the House 2020Self★ NR
-
My Boyfriend's Meds 2020Dr. Sternbach★ 7.1
-
Self★ 7.2
-
Harley Quinn 2019Sy Borgman (voice)★ 8.3
-
Mad About You 2019Jason Alexander★ 8.2
-
The Conners 2018Pastor Phil★ 7
-
The Portuguese Kid 2018Barry Dragonetti★ 2
-
Jason Alexander★ NR
-
Self★ 10
-
Hit the Road 2017Ken Swallow★ 7.2
-
Young Sheldon 2017Gene Lundy★ 8.1
-
The Orville 2017Olix★ 7.6
-
Kody Kapow 2017Goji (voice)★ NR
-
Self★ 7.1
-
Asher Friedman★ 8.1
-
Dinner with Dad 2017Jason Alexander★ NR
-
Mark Lembeck★ NR
-
Self★ 7.5
-
Self★ 7.5
-
Self★ 6
-
Match Game 2016Self - Panelist★ 5.9
-
Mr. Bibb / The Nome King (voice)★ 5.8
-
To Tell the Truth 2016Self - Panelist★ 6
-
The Last Laugh 2016Self★ 6.9
-
George Costanza (archive footage)★ NR
-
The Grinder 2015Cliff Bemis★ 6.7
-
Larry's Dad★ 4.8
-
Jason Alexander★ 7.1
-
Misery Loves Comedy 2015Self★ 6
-
Wild Card 2015Pinky★ 5.7
-
Doc Holiday (voice)★ 5.9
-
Coach Wallace (voice)★ 6.9
-
Lucky Stiff 2014Vinnie Di Ruzzio★ 5
-
Rick (voice)★ 7.3
-
TripTank 2014Doctor (voice)★ 5.1
-
Kirstie 2013Stanford Temple★ 4.6
-
Hollywood Game Night 2013Self★ 6.7
-
Stars In Shorts 2012Sid Rosenthal★ NR
-
Another Dirty Movie 2012Self (uncredited)★ 2.6
-
Say It Ain't Solo 2012Himself★ NR
-
Eugene (voice)★ NR
-
China, IL 2011Harold (voice)★ 7
-
Owl (voice)★ 10
-
Cosmo★ 4.9
-
Not Your Time 2010Sid Rosenthal★ 1
-
Moronic (voice)★ 6.8
-
Fish Hooks 2010Mr. Nibbles★ 6.4
-
Rock Slyde 2010Mailman Stan★ 5.4
-
The Marriage Ref 2010Self - Panelist★ 3.8
-
The Cleveland Show 2009★ 5.9
-
Community 2009Mountain Man★ 8
-
Hachi: A Dog's Tale 2009Carl★ 8
-
Step It Up and Dance 2008★ NR
-
Himself★ 6.5
-
The Grand 2007Dr. Yakov Achmed★ 6
-
Self★ NR
-
Penguin on Belly (voice)★ 4.1
-
Self - Roastmaster★ 6.5
-
Johnny★ 2.6
-
British Record Mogul★ 4.8
-
Ira & Abby 2006Dr. Morris Saperstein★ 5.5
-
Where My Dogs At? 2006★ 7.5
-
Dr. Palmer★ 7
-
Earth to America 2005self★ 8
-
★ 8
-
Criminal Minds 2005Prof. Rothchild★ 8.3
-
The Aristocrats 2005Self★ 5.9
-
Robot Chicken 2005Krampus (voice)★ 7.6
-
American Dad! 2005Mr. Orlando (voice)★ 7
-
A Christmas Carol 2004Jacob Marley / Marley's Ghost★ 6.4
-
The Seinfeld Story 2004Self★ 7.5
-
Self/George Costanza★ 7.4
-
Listen Up! 2004Tony Kleinman★ 6.2
-
Two and a Half Men 2003Dr. Goodman★ 7.5
-
Self (archive footage)★ NR
-
Lightning (voice)★ 6
-
A.C. Gilbert★ 5.9
-
The Twilight Zone 2002Patient★ 7.2
-
Monk 2002Marty Eels★ 7.9
-
Gargoyle Hugo (voice)★ 5.4
-
Being 'Shallow Hal' 2001Self★ 8
-
Shallow Hal 2001Mauricio★ 6.2
-
Bob Patterson 2001Bob Patterson★ 6.5
-
The Legend of Tarzan 2001Zutho (voice)★ 6.8
-
Father (voice)★ 5.5
-
Self★ 7.2
-
★ 7.4
-
Curb Your Enthusiasm 2000Jason Alexander★ 8
-
The Huntress 2000★ 5.2
-
Boris★ 4.2
-
Son of the Beach 2000★ 6.7
-
★ 6.5
-
Leonard★ 8.5
-
Host★ 1
-
Self - Roastmaster★ 5.3
-
Self★ 7.5
-
Frank Bonner★ 5
-
Uncle Horst / Henri (voice)★ 6.7
-
Narrator★ NR
-
Dilbert 1999Catbert (voice)★ 6.9
-
Jingle Bells 1999Elf (Voice)★ 6
-
Hollywood Squares 1998Self - Panelist★ 6.5
-
Hercules 1998Poseidon★ 6.8
-
Denial 1998Art Witz★ 5
-
Titey 1998Titey (voice)★ NR
-
Weevil Kneevil★ NR
-
Cinderella 1997Lionel★ 6.5
-
Buzz Hauser★ 6.2
-
Gargoyle Hugo (voice)★ 7.1
-
Muppets Tonight 1996Self★ 7.5
-
Remember WENN 1996Alan Ballinger★ 8
-
Dunston Checks In 1996Robert Grant★ 5.4
-
Quote Reader★ 4.7
-
Bye Bye Birdie 1995Albert J. Peterson★ 5.9
-
The Last Supper 1995Anti-Enviroment★ 6.6
-
For Better or Worse 1995Michael Makeshift★ 4.6
-
Star Trek: Voyager 1995Kurros★ 7.8
-
★ NR
-
Friends 1994Earl★ 8.4
-
Blankman 1994Mr. Stone★ 5.3
-
North 1994North's Dad★ 5
-
The Return of Jafar 1994Abis Mal - the Chief of the Thieves (voice)★ 6.2
-
★ 5
-
The Paper 1994Marion Sandusky★ 6.6
-
Duckman 1994Duckman (voice)★ 7.2
-
Aladdin 1994Abis Mal (voice)★ 6.9
-
Coneheads 1993Larry Farber★ 5.4
-
Sexual Healing 1993Frank★ NR
-
For Goodness Sake 1993Electronics Store Customer★ 10
-
Jason Alexander★ 7.7
-
Bernie Fishbine★ 4.6
-
Dinosaurs 1991Grown Baby (voice)★ 7.8
-
Jacob's Ladder 1990Geary★ 7.4
-
White Palace 1990Neil★ 6.1
-
Dream On 1990Randall Townsend★ 6.9
-
Pretty Woman 1990Philip Stuckey★ 7.5
-
The Simpsons 1989Bourbon Verlander (voice)★ 8
-
Seinfeld 1989George Costanza★ 8.3
-
Favorite Son 1988Chris Van Allen★ 4.7
-
Julian Beeby★ 5.5
-
Pool Player #1★ 6.5
-
The Mosquito Coast 1986Hardware Clerk★ 6.4
-
Rockabye 1986Lt. Ernest Foy★ 7.8
-
E/R 1984Harold Stickley★ 5.2
-
Reading Rainbow 1983Himself - Narrator (voice)★ 8.4
-
Newhart 1982★ 7.1
-
Senior Trip 1981Pete★ 4.2
-
The Burning 1981Dave★ 6.2
-
A Capitol Fourth 1980Self★ NR
-
Tony Awards 1956Self - Presenter★ 4.6
-
The Emmy Awards 1949Self★ 7.6