Acting credits
199
Prolific
Very extensive acting filmography.
Actor
Jason Alexander
Acting
Career Snapshot
ExplainedThese indicators come from TMDB. They are relative signals, not review ratings.
TMDB popularity
3.8
Moderate attention
TMDB internal trend index. Higher usually means more searches and page activity now.
Movies: 103Series: 101Crew credits: 13
TMDB ID: 1206
IMDb ID: nm0004517
Known for: Acting
Born: September 23, 1959
Age: 66
Place of birth: Newark, New Jersey, USA
Gender: Male
Adult content flag: No
Career span: 1944 - 2026
Years active: 83
Average TMDB rating: 6.66
Wikidata: Q311754
Also known as
Jason Scott Greenspan • جیسون الکساندر
Other jobs
Director (8)Executive Producer (2)Consulting Producer (1)Creator (1)Writer (1)
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.
Photos
Movies
Movies
Movie credits linked with Jason Alexander.
Nov 20
Jimmy
as Louis B. Mayer
2026 Movie
The Gettysburg Address
as Noah Brooks (voice)
2025 Movie
Paddy Chayefsky: Collector of Words
as Self
2025 Movie
4.0
Stealing Pulp Fiction
as Dr. Mendelbaum
2025 Movie
6.5
The Electric State
as Ted / Wingman
2025 Movie
7.8
Dick Van Dyke: 98 Years of Magic
as Self - Performer
2023 Movie
7.4
Leo
as Jayda's Dad (voice)
2023 Movie
The Conspiracy
2022 Movie
5.0
Killing Me Softly with His Songs
as Self
2022 Movie
6.1
Out of Office
2022 Movie
8.0
Cinderella: The Reunion, A Special Edition of 20/20
as Self
2022 Movie
Dunston Checks Out
as Jason Alexander (archival footage)
2022 Movie
Broadway: Beyond the Golden Age
as Self
2021 Movie
4.8
The Rocky Horror Musical Live Stream
as Narrator
2020 Movie
4.5
Faith Based
as Nicky Steele
2020 Movie
7.2
My Boyfriend's Meds
as Dr. Sternbach
2020 Movie
2.0
The Portuguese Kid
as Barry Dragonetti
2018 Movie
Bucky and the Squirrels
as Jason Alexander
2018 Movie
10.0
Broadway: The Next Generation
as Self
2017 Movie
7.1
The Truth Is in the Stars
as Self
2017 Movie
The Mark Lembeck Technique
as Mark Lembeck
2016 Movie
7.5
Best Worst Thing That Ever Could Have Happened...
as Self
2016 Movie
7.4
For the Love of Spock
as Self
2016 Movie
6.0
There's Something About Romcoms
as Self
2016 Movie
Series
Series
Series credits linked with Jason Alexander.
5.6
LEGO Marvel Avengers: Strange Tails
as Magneto (voice) • 2 eps
2025 Series
6.5
The Bad Guys: Breaking In
as Mysterious Figure (voice) • 1 eps
2025 Series
7.1
Y llegaron de noche
as Carl Laemmle • 7 eps
2024 Series
7.4
Rock, Paper, Scissors
as Jonathan Fartjoke (voice) • 1 eps
2023 Series
5.6
History of the World: Part II
as Maurice Cheeks • 1 eps
2023 Series
7.3
Star Trek: Prodigy
as Doctor Noum (voice) • 7 eps
2021 Series
7.2
The Problem with Jon Stewart
as Jeff Bezos • 1 eps
2021 Series
6.9
History of the Sitcom
as Self - Actor • 8 eps
2021 Series
7.0
Celebrity Wheel of Fortune
as Self - Contestant • 1 eps
2021 Series
Stars in the House
as Self • 1 eps
2020 Series
8.3
Harley Quinn
as Sy Borgman (voice) • 13 eps
2019 Series
7.2
The Movies That Made Us
as Self • 1 eps
2019 Series
8.0
Mad About You
as Jason Alexander • 1 eps
2019 Series
7.1
The Conners
as Pastor Phil • 2 eps
2018 Series
7.2
Hit the Road
as Ken Swallow • 10 eps
2017 Series
8.0
Young Sheldon
as Gene Lundy • 5 eps
2017 Series
7.6
The Orville
as Olix • 2 eps
2017 Series
Kody Kapow
as Goji (voice) • 22 eps
2017 Series
8.0
The Marvelous Mrs. Maisel
as Asher Friedman • 3 eps
2017 Series
Dinner with Dad
as Jason Alexander • 8 eps
2017 Series
7.0
The $100,000 Pyramid
as Self • 1 eps
2016 Series
6.4
Match Game
as Self - Panelist • 6 eps
2016 Series
5.7
To Tell the Truth
as Self - Panelist • 2 eps
2016 Series
6.7
The Grinder
as Cliff Bemis • 4 eps
2015 Series