18
Born · September 23, 1959 (65 years old)
Known For: Acting
Place of Birth: Newark, New Jersey, USA
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.
Noah Brooks (voice)
0.0
2025
0.0
2025
Self
0.0
2024
Dr. Mendelbaum
0.0
2024
Self - Performer
7.5
2023
Jayda's Dad (voice)
7.5
2023
0.0
2022
Self
5.0
2022
6.1
2022
Self
7.5
2022
Self
0.0
2021
Narrator
6.0
2020
Nicky Steele
4.8
2020
Dr. Sternbach
7.1
2020
Barry Dragonetti
2.0
2018
Jason Alexander
0.0
2018
Self
10.0
2017
Self
7.1
2017
Mark Lembeck
0.0
2016
Self
7.5
2016
Self
7.5
2016
Self
6.0
2016
Mr. Bibb / The Nome King (voice)
5.8
2016
Self
6.9
2016
George Costanza (archive footage)
0.0
2016
Larry's Dad
4.8
2015
Self
6.2
2015
Pinky
5.7
2015
Doc Holiday (voice)
5.9
2014
Vinnie Di Ruzzio
5.0
2014
Sid Rosenthal
0.0
2012
Self (uncredited)
2.6
2012
Himself
0.0
2012
Eugene (voice)
0.0
2011
Owl (voice)
10.0
2011
Cosmo
4.8
2011
Sid Rosenthal
1.0
2010
Moronic (voice)
6.8
2010
Mailman Stan
5.4
2010
Carl
8.0
2009
Himself
6.5
2007
Dr. Yakov Achmed
6.0
2007
Penguin on Belly (voice)
4.0
2006
(1 episode)
5.5
2006
Self - Roastmaster
6.5
2006
Johnny
2.6
2006
British Record Mogul
4.8
2006
Dr. Morris Saperstein
5.8
2006
self
8.0
2005
(2 episodes)
8.0
2005
Self
5.9
2005
Jacob Marley / Marley's Ghost
6.4
2004
Himself/George Costanza
7.4
2004
Self - Guest · (3 episodes)
6.1
2004
Self · (2 episodes)
5.8
2003
Self (archive footage)
0.0
2003
Lightning (voice)
6.0
2003
A.C. Gilbert
5.7
2002
Gargoyle Hugo (voice)
5.4
2002
Self
10.0
2001
Mauricio
6.2
2001
Father (voice)
5.5
2001
Boris
4.1
2000
(1 episode)
6.8
2000
6.5
2000
Host
1.0
1999
Self - Roastmaster
5.3
1999
Self
7.5
1999
Frank Bonner
5.0
1999
Uncle Horst / Henri (voice)
7.0
1999
Narrator
0.0
1999
Elf (Voice)
6.0
1999
Art Witz
5.0
1998
Titey (voice)
0.0
1998
Lionel
6.5
1997
Buzz Hauser
6.2
1997
Gargoyle Hugo (voice)
7.1
1996
Robert Grant
5.4
1996
Quote Reader
4.7
1996
Albert J. Peterson
5.9
1995
Anti-Enviroment
6.6
1995
Michael Makeshift
4.6
1995
Mr. Stone
5.3
1994
North's Dad
5.0
1994
Abis Mal - the Chief of the Thieves (voice)
6.2
1994
5.0
1994
Marion Sandusky
6.6
1994
Duckman (voice) · (70 episodes)
7.2
1994
Larry Farber
5.4
1993
Frank
0.0
1993
Electronics Store Customer
10.0
1993
Bernie Fishbine
4.6
1992
Geary
7.4
1990
Neil
6.1
1990
Philip Stuckey
7.5
1990
Dr. Chetwyn
0.0
George Costanza · (180 episodes)
8.3
1989
Pool Player #1
6.5
1986
Hardware Clerk
6.4
1986
Lt. Ernest Foy
7.8
1986
Pete
4.2
1981
Dave
6.2
1981
Mr. Mouse
0.0
Mervyn
0.0
(7 episodes)
6.8
2024
Jonathan Fartjoke · (1 episode)
10.0
2024
Maurice Cheeks · (1 episode)
5.6
2023
Doctor Noum (voice) · (7 episodes)
7.4
2021
Counselor Noum (voice) · (16 episodes)
7.4
2021
Self - Actor · (8 episodes)
7.0
2021
Self - Contestant · (1 episode)
7.1
2021
Self · (1 episode)
0.0
2020
Self - Special Guest · (1 episode)
0.0
2020
Self · (1 episode)
7.2
2019
Sy Borgman (voice) · (13 episodes)
8.4
2019
Jason Alexander · (1 episode)
8.4
2019
Pastor Phil · (2 episodes)
6.9
2018
Ken Swallow · (10 episodes)
7.2
2017
Gene Lundy · (5 episodes)
8.1
2017
Olix · (2 episodes)
7.6
2017
Goji (voice) · (22 episodes)
0.0
2017
Asher Friedman · (1 episode)
8.1
2017
Jason Alexander · (8 episodes)
0.0
2017
Self · (1 episode)
7.3
2016
Self - Panelist · (6 episodes)
6.0
2016
Self - Panelist · (2 episodes)
6.0
2016
Cliff Bemis · (4 episodes)
6.7
2015
Jason Alexander · (1 episode)
7.2
2015
Self · (1 episode)
5.4
2015
Coach Wallace (voice) · (1 episode)
7.1
2014
Rick (voice) · (52 episodes)
7.2
2014
Doctor (voice) · (1 episode)
5.3
2014
Self · (1 episode)
5.5
2014
Stanford Temple · (1 episode)
4.6
2013
Self · (2 episodes)
6.8
2013
William Tweed · (1 episode)
6.8
2013
Self · (1 episode)
7.2
2012
Inspector Gantlet · (1 episode)
6.1
2012
Self · (1 episode)
7.4
2011
Harold (voice) · (10 episodes)
6.9
2011
Mr. Nibbles · (0 episode)
6.5
2010
Mr. Nibbles (voice) · (3 episodes)
6.5
2010
Self - Panelist · (1 episode)
3.8
2010
(1 episode)
5.8
2009
Mountain Man · (1 episode)
8.0
2009
Dr. Chetwyn · (2 episodes)
6.3
2009
Self · (1 episode)
4.0
2008
(1 episode)
0.0
2008
Self · (1 episode)
0.0
2007
Self - Guest · (1 episode)
5.1
2006
(1 episode)
7.5
2006
Dr. Palmer · (1 episode)
6.8
2006
Prof. Rothchild · (1 episode)
8.3
2005
Krampus (voice) · (1 episode)
7.6
2005
Mr. Orlando (voice) · (1 episode)
7.0
2005
Sal (voice) · (1 episode)
7.0
2005
Self · (1 episode)
6.8
2005
Tony Kleinman · (22 episodes)
6.3
2004
Dr. Goodman · (1 episode)
7.5
2003
Self · (8 episodes)
6.0
2003
(1 episode)
5.5
2003
Patient · (1 episode)
7.2
2002
Marty Eels · (1 episode)
7.9
2002
Bob Patterson · (10 episodes)
6.5
2001
Self · (1 episode)
3.0
2001
Zutho (voice) · (1 episode)
6.8
2001
(1 episode)
6.9
2001
Self · (1 episode)
5.5
2001
(0 episode)
7.4
2001
Jason Alexander · (5 episodes)
8.0
2000
(1 episode)
5.2
2000
Leonard · (1 episode)
8.5
2000
Self - Guest · (1 episode)
4.2
1999
Catbert (voice) · (9 episodes)
6.9
1999
Self - Panelist · (10 episodes)
6.5
1998
Poseidon · (0 episode)
6.8
1998
Poseidon (voice) · (5 episodes)
6.8
1998
Self · (2 episodes)
7.3
1996
Kurros · (1 episode)
7.8
1995
Earl · (1 episode)
8.4
1994
Abis Mal (voice) · (10 episodes)
6.9
1994
Captain Albatross (voice) · (1 episode)
6.9
1994
Abis Mal / Abnor Mal (voice) · (1 episode)
6.9
1994
Jason Alexander · (1 episode)
7.7
1992
Grown Baby (voice) · (1 episode)
7.8
1991
Stu (voice) · (1 episode)
7.8
1991
Gus Molehill (voice) · (1 episode)
7.8
1991
The Job Wizard (voice) · (1 episode)
7.8
1991
General H. Norman Conquest (voice) · (1 episode)
7.8
1991
Sexual Harris (voice) · (1 episode)
7.8
1991
UFO! Host / Announcer (voice) · (1 episode)
7.8
1991
Randall Townsend · (1 episode)
6.9
1990
Bourbon Verlander (voice) · (1 episode)
8.0
1989
Chris Van Allen · (3 episodes)
4.7
1988
Self - Guest · (1 episode)
5.2
1988
Julian Beeby · (10 episodes)
5.5
1987
Harold Stickley · (6 episodes)
5.2
1984
(1 episode)
5.2
1984
Himself - Narrator (voice) · (1 episode)
8.4
1983
(1 episode)
7.2
1982
Self · (1 episode)
5.9
1982
Self · (44 episodes)
0.0
1980
Self - Host · (1 episode)
6.9
1975
Self - Cameo (uncredited) · (1 episode)
6.9
1975
Self - Presenter · (1 episode)
5.0
1956
Self · (1 episode)
7.5
1949
Titey (voice) · (1 episode)
10.0