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.
They're Real & They're Spectacular: Seinfeld Super Fans & The Summer of George
2016
as George Costanza (archive footage)
| Organization | Category | Movie |
|---|
Seinfeld
as George Costanza
Episodes: 180
First Aired: Jul 05, 1989
Duckman
as Duckman (voice)
Episodes: 70
First Aired: Mar 05, 1994
The Tom and Jerry Show
as Rick (voice)
Episodes: 52
First Aired: Apr 09, 2014
Listen Up!
as Tony Kleinman
Episodes: 22
First Aired: Sep 20, 2004
Kody Kapow
as Goji (voice)
Episodes: 22
First Aired: Jul 15, 2017
Star Trek: Prodigy
as Counselor Noum (voice)
Episodes: 16
First Aired: Oct 28, 2021
Harley Quinn
as Sy Borgman (voice)
Episodes: 13
First Aired: Nov 29, 2019
Aladdin
as Abis Mal (voice)
Episodes: 10
First Aired: Feb 06, 1994
Bob Patterson
as Bob Patterson
Episodes: 10
First Aired: Oct 02, 2001
Everything's Relative
as Julian Beeby
Episodes: 10
First Aired: Oct 03, 1987
Hit the Road
as Ken Swallow
Episodes: 10
First Aired: Oct 17, 2017
China, IL
as Harold (voice)
Episodes: 10
First Aired: Oct 02, 2011
Dilbert
as Catbert (voice)
Episodes: 9
First Aired: Jan 25, 1999
Dinner with Dad
as Jason Alexander
Episodes: 8
First Aired: Mar 10, 2017
Star Trek: Prodigy
as Doctor Noum (voice)
Episodes: 7
First Aired: Oct 28, 2021
E/R
as Harold Stickley
Episodes: 6
First Aired: Sep 16, 1984
Young Sheldon
as Gene Lundy
Episodes: 5
First Aired: Sep 25, 2017
Curb Your Enthusiasm
as Jason Alexander
Episodes: 5
First Aired: Oct 15, 2000
Hercules
as Poseidon (voice)
Episodes: 5
First Aired: Aug 31, 1998
The Grinder
as Cliff Bemis
Episodes: 4
First Aired: Sep 29, 2015
Favorite Son
as Chris Van Allen
Episodes: 3
First Aired: Oct 30, 1988
Fish Hooks
as Mr. Nibbles (voice)
Episodes: 3
First Aired: Sep 03, 2010
Meteor
as Dr. Chetwyn
Episodes: 2
First Aired: Jul 12, 2009
The Orville
as Olix
Episodes: 2
First Aired: Sep 10, 2017
The Conners
as Pastor Phil
Episodes: 2
First Aired: Oct 16, 2018
Dream On
as Randall Townsend
Episodes: 1
First Aired: Jul 08, 1990
Friends
as Earl
Episodes: 1
First Aired: Sep 22, 1994
Star Trek: Voyager
as Kurros
Episodes: 1
First Aired: Jan 16, 1995
Monk
as Marty Eels
Episodes: 1
First Aired: Jul 12, 2002
The Larry Sanders Show
as Jason Alexander
Episodes: 1
First Aired: Aug 15, 1992
The Legend of Tarzan
as Zutho (voice)
Episodes: 1
First Aired: Sep 03, 2001
Dinosaurs
as Grown Baby (voice)
Episodes: 1
First Aired: Apr 26, 1991
The New Adventures of Old Christine
as Dr. Palmer
Episodes: 1
First Aired: Mar 13, 2006
Community
as Mountain Man
Episodes: 1
First Aired: Sep 17, 2009
American Dad!
as Mr. Orlando (voice)
Episodes: 1
First Aired: Feb 06, 2005
Comedy Bang! Bang!
as Inspector Gantlet
Episodes: 1
First Aired: Jun 08, 2012
Drunk History
as William Tweed
Episodes: 1
First Aired: Jul 09, 2013
Two and a Half Men
as Dr. Goodman
Episodes: 1
First Aired: Sep 22, 2003
Aladdin
as Captain Albatross (voice)
Episodes: 1
First Aired: Feb 06, 1994
Aladdin
as Abis Mal / Abnor Mal (voice)
Episodes: 1
First Aired: Feb 06, 1994
Big Time in Hollywood, Fl
as Jason Alexander
Episodes: 1
First Aired: Mar 25, 2015
The Twilight Zone
as Patient
Episodes: 1
First Aired: Sep 18, 2002
Dinosaurs
as Stu (voice)
Episodes: 1
First Aired: Apr 26, 1991
Penn Zero: Part-Time Hero
as Coach Wallace (voice)
Episodes: 1
First Aired: Dec 05, 2014
The Marvelous Mrs. Maisel
as Asher Friedman
Episodes: 1
First Aired: Mar 16, 2017
TripTank
as Doctor (voice)
Episodes: 1
First Aired: Apr 02, 2014
Criminal Minds
as Prof. Rothchild
Episodes: 1
First Aired: Sep 22, 2005
Dinosaurs
as The Job Wizard (voice)
Episodes: 1
First Aired: Apr 26, 1991
Dinosaurs
as Gus Molehill (voice)
Episodes: 1
First Aired: Apr 26, 1991
Dinosaurs
as Sexual Harris (voice)
Episodes: 1
First Aired: Apr 26, 1991
Dinosaurs
as General H. Norman Conquest (voice)
Episodes: 1
First Aired: Apr 26, 1991
Robot Chicken
as Krampus (voice)
Episodes: 1
First Aired: Feb 20, 2005
The Simpsons
as Bourbon Verlander (voice)
Episodes: 1
First Aired: Dec 17, 1989
American Dad!
as Sal (voice)
Episodes: 1
First Aired: Feb 06, 2005
Kirstie
as Stanford Temple
Episodes: 1
First Aired: Dec 04, 2013
Mad About You
as Jason Alexander
Episodes: 1
First Aired: Nov 20, 2019
History of the World: Part II
as Maurice Cheeks
Episodes: 1
First Aired: Mar 06, 2023
Saturday TV Funhouse
as Titey (voice)
Episodes: 1
First Aired: Unknown
Rock, Paper, Scissors
as Jonathan Fartjoke (voice)
Episodes: 1
First Aired: Feb 12, 2024
Malcolm in the Middle
as Leonard
Episodes: 1
First Aired: Jan 09, 2000
Hercules
as Poseidon
Episodes: 0
First Aired: Aug 31, 1998
Fish Hooks
as Mr. Nibbles
Episodes: 0
First Aired: Sep 03, 2010
A Capitol Fourth
as Self
Episodes: 44
First Aired: Jul 04, 1980
Hollywood Squares
as Self - Panelist
Episodes: 10
First Aired: Sep 14, 1998
History of the Sitcom
as Self - Actor
Episodes: 8
First Aired: Jul 11, 2021
Real Time with Bill Maher
as Self
Episodes: 8
First Aired: Feb 21, 2003
Y llegaron de noche
Episodes: 7
First Aired: Oct 04, 2024
Match Game
as Self - Panelist
Episodes: 6
First Aired: Jun 26, 2016
Hollywood Squares
Episodes: 5
First Aired: Sep 14, 1998
The Tony Danza Show
as Self - Guest
Episodes: 3
First Aired: Sep 13, 2004
Everybody Hates Chris
Episodes: 2
First Aired: Sep 22, 2005
The Ellen DeGeneres Show
as Self
Episodes: 2
First Aired: Sep 08, 2003
Muppets Tonight
as Self
Episodes: 2
First Aired: Mar 08, 1996
Hollywood Game Night
as Self
Episodes: 2
First Aired: Jul 11, 2013
To Tell the Truth
as Self - Panelist
Episodes: 2
First Aired: Jun 14, 2016
Talkshow with Spike Feresten
Episodes: 1
First Aired: Sep 16, 2006
Son of the Beach
Episodes: 1
First Aired: Mar 14, 2000
Jimmy Kimmel Live!
Episodes: 1
First Aired: Jan 26, 2003
Newhart
Episodes: 1
First Aired: Oct 02, 1982
Late Night with David Letterman
as Self
Episodes: 1
First Aired: Feb 01, 1982
The Huntress
Episodes: 1
First Aired: Jul 26, 2000
E/R
Episodes: 1
First Aired: Sep 16, 1984
The Late Late Show with Craig Ferguson
as Self
Episodes: 1
First Aired: Jan 03, 2005
Where My Dogs At?
Episodes: 1
First Aired: Jun 10, 2006
Step It Up and Dance
Episodes: 1
First Aired: Apr 03, 2008
The Cleveland Show
Episodes: 1
First Aired: Sep 27, 2009
The Marriage Ref
as Self - Panelist
Episodes: 1
First Aired: Feb 28, 2010
The Late Late Show with Craig Kilborn
as Self - Guest
Episodes: 1
First Aired: Mar 30, 1999
Good Day Live
as Self
Episodes: 1
First Aired: Sep 17, 2001
The Emmy Awards
as Self
Episodes: 1
First Aired: Jan 25, 1949
Saturday Night Live
as Self - Host
Episodes: 1
First Aired: Oct 11, 1975
Critics Choice Awards
as Self
Episodes: 1
First Aired: Jan 22, 2001
The Movies That Made Us
as Self
Episodes: 1
First Aired: Nov 29, 2019
Late Night with Seth Meyers
as Self
Episodes: 1
First Aired: Feb 25, 2014
Talking Dead
as Self
Episodes: 1
First Aired: Oct 16, 2011
The Late Late Show with James Corden
as Self
Episodes: 1
First Aired: Mar 23, 2015
Tony Awards
as Self - Presenter
Episodes: 1
First Aired: Apr 01, 1956
Reading Rainbow
as Himself - Narrator (voice)
Episodes: 1
First Aired: Jun 06, 1983
Shatner's Raw Nerve
as Self
Episodes: 1
First Aired: Dec 02, 2008
The $100,000 Pyramid
as Self
Episodes: 1
First Aired: Jun 27, 2016
Dinosaurs
as UFO! Host / Announcer (voice)
Episodes: 1
First Aired: Apr 26, 1991
Comedians in Cars Getting Coffee
as Self
Episodes: 1
First Aired: Jul 19, 2012
Rachael Ray
as Self - Guest
Episodes: 1
First Aired: Sep 18, 2006
Stars in the House
as Self
Episodes: 1
First Aired: Mar 16, 2020
Stars in the House
as Self - Special Guest
Episodes: 1
First Aired: Mar 16, 2020
Saturday Night Live
as Self - Cameo (uncredited)
Episodes: 1
First Aired: Oct 11, 1975
Primetime Glick
Episodes: 1
First Aired: Jun 20, 2001
LIVE with Kelly and Mark
as Self - Guest
Episodes: 1
First Aired: Sep 05, 1988
Thank God You're Here
as Self
Episodes: 1
First Aired: Apr 09, 2007
Celebrity Wheel of Fortune
as Self - Contestant
Episodes: 1
First Aired: Jan 07, 2021
Disney's House of Mouse
Episodes: 0
First Aired: Jan 13, 2001
Popularity History
| Year | Month | Avg | Max | Min |
|---|---|---|---|---|
| 2024 | 6 | 26 | 34 | 21 |
| 2024 | 7 | 33 | 51 | 20 |
| 2024 | 8 | 23 | 41 | 14 |
| 2024 | 9 | 20 | 30 | 13 |
| 2024 | 10 | 24 | 50 | 15 |
| 2024 | 11 | 19 | 32 | 11 |
| 2024 | 12 | 21 | 40 | 13 |
| 2025 | 1 | 23 | 39 | 11 |
| 2025 | 2 | 14 | 23 | 2 |
| 2025 | 3 | 7 | 25 | 1 |
| 2025 | 4 | 1 | 2 | 1 |
| 2025 | 5 | 4 | 5 | 1 |
| 2025 | 6 | 2 | 3 | 1 |
| 2025 | 7 | 1 | 2 | 1 |
| 2025 | 8 | 1 | 2 | 1 |
Trending Rank
| Year | Month | Avg Rank | Max Rank |
|---|---|---|---|
| 2025 | 1 | 767 | 616 |
| 2025 | 2 | 778 | 626 |
| 2025 | 7 | 649 | 566 |