Highest rated as cast or director
Seinfeld
1989 · 9 Seasons
Duckman
1994 · 4 Seasons
Leo
2023
The Paper
1994
Jacob's Ladder
1990
Cinderella
1997
Jason Alexander's 13 titles from the 1990s have a median Balasaur Score of 63, led by Duckman (76) and The Paper (71), against 56 for those from the 2000s.
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.
Acted in 142
2020s
- 2026
- 2025
Stealing Pulp Fiction
Dr. Mendelbaum
- 2024
Y llegaron de noche
Carl Laemmle · 7 episodes
- 2023
- 2022
The Conspiracy
Movie
Dunston Checks Out
Jason Alexander (archival footage)
- 2021
- 2020
My Boyfriend's Meds
Dr. Sternbach
2010s
- 2019
- 2018
The Portuguese Kid
Barry Dragonetti
- 2017
Hit the Road
Ken Swallow · 10 episodes
Kody Kapow
Goji (voice) · 22 episodes
Dinner with Dad
Jason Alexander · 8 episodes
- 2016
The Mark Lembeck Technique
Mark Lembeck
- 2015
China, Il The Musical
Harold
Big Time in Hollywood, Fl
Jason Alexander · 1 episode
- 2014
How Murray Saved Christmas
Doc Holiday (voice)
Lucky Stiff
Vinnie Di Ruzzio
- 2013
Kirstie
Stanford Temple · 1 episode
- 2012
Stars in Shorts
Sid Rosenthal
- 2011
The Voyages of Young Doctor Dolittle
Eugene (voice)
Dora the Explorer: Dora's Enchanted Forest Adventures
Owl (voice)
- 2010
Not Your Time
Sid Rosenthal
Quantum Quest: A Cassini Space Odyssey
Moronic (voice)
Rock Slyde
Mailman Stan
2000s
- 2009
- 2007
The Grand
Dr. Yakov Achmed
- 2006
Farce of the Penguins
Penguin on Belly (voice)
How to Go Out on a Date in Queens
Johnny
- 2005
- 2004
- 2003
- 2002
The Man Who Saved Christmas
A.C. Gilbert
- 2001
Bob Patterson
Bob Patterson · 5 episodes
On Edge
Zamboni Phil
The Trumpet of the Swan
Father (voice)
- 2000
Let's Rap Fire Safety
Seemore Smoke (voice)
1990s
- 1999
Jingle Bells
Elf (Voice)
- 1998
Titey
Titey (voice)
- 1997
Love! Valour! Compassion!
Buzz Hauser
- 1996
The Making of Disney's The Hunchback of Notre Dame
Movie
- 1995
Bye Bye Birdie
Albert J. Peterson
For Better or Worse
Michael Makeshift
A Tribute to Stephen Sondheim
Movie
- 1994
Down on the Waterfront
Movie
- 1993
Sexual Healing
Frank
For Goodness Sake
Electronics Store Customer
- 1992
I Don't Buy Kisses Anymore
Bernie Fishbine
- 1991
- 1990
1980s
- 1989
- 1988
Favorite Son
Chris Van Allen · 3 episodes
- 1987
Everything's Relative
Julian Beeby · 10 episodes
- 1986
Rockabye
Lt. Ernest Foy
- 1984
E/R
Harold Stickley · 6 episodes
- 1982
- 1981
Senior Trip
Pete
No release date
The Sisters Rosensweig
Mervyn
Leo 2
Movie
Saturday TV Funhouse
Titey (voice) · 1 episode
Directed 9
2010s
- 2017
- 2010
2000s
- 2006
Campus Ladies
Director
- 2005
1990s
- 1999
- 1996
- 1995
For Better or Worse
Director
1980s
- 1989
Produced 4
2010s
- 2016
The Mark Lembeck Technique
Consulting Producer
2000s
- 2004
- 2003
- 2001
Bob Patterson
Executive Producer
Wrote 2
2010s
- 2017
Dinner with Dad
Writer
2000s
- 2001
Bob Patterson
Story, Teleplay
Created 1
2000s
- 2001
Bob Patterson
Creator
Appearances65
2020s
- 2026
To Kill a Nazi
Narrator
- 2025
- 2023
- 2022
- 2021
Broadway: Beyond the Golden Age
Self
- 2020
The Rocky Horror Musical Live Stream
Narrator
2010s
- 2019
- 2017
- 2016
Best Worst Thing That Ever Could Have Happened...
Self
There's Something About Romcoms
Self
- 2015
- 2014
- 2013
- 2012
- 2011
2000s
- 2008
Shatner's Raw Nerve
Self · 1 episode
- 2007
Jerry Seinfeld: Submarine Captain
Self
Thank God You're Here
Self · 1 episode
- 2006
- 2005
Earth to America
self
- 2004
The Seinfeld Story
Self
Seinfeld: How It Began
Self/George Costanza
Kramer vs. Kramer: Kenny to Cosmo
Self
- 2003
The Very Best of America's Funniest Comedians
Self (archive footage)
- 2001
Being 'Shallow Hal'
Self
Bravo Profiles: Penn and Teller
Self
Critics Choice Awards
Self · 1 episode
1990s
- 1999
Ultimate Trek: Star Trek's Greatest Moments
Host
The N.Y. Friars Club Roast of Jerry Stiller
Self - Roastmaster
Sideshow: Alive on the Inside
Narrator
- 1998
- 1996
1980s
- 1988
- 1984
- 1983
- 1982
- 1980
1970s
- 1975
1940s
- 1949
The Emmy Awards
Self · 1 episode
- 1944
No release date
Broadway: The Next Generation
Self