Jason Alexander
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.
Filmography
Jimmy
2026
as Louis B. Mayer
To Kill a Nazi
2026
as Narrator
The Gettysburg Address
2025
as Noah Brooks (voice)
Paddy Chayefsky: Collector of Words
2025
as Self
Stealing Pulp Fiction
2025
as Dr. Mendelbaum
The Electric State
2025
as Ted / Wingman
Dick Van Dyke: 98 Years of Magic
2023
as Self - Performer
Leo
2023
as Jayda's Dad (voice)
The Conspiracy
2022
Killing Me Softly with His Songs
2022
as Self
Out of Office
2022
Cinderella: The Reunion, A Special Edition of 20/20
2022
as Self
Dunston Checks Out
2022
as Jason Alexander (archival footage)
Broadway: Beyond the Golden Age
2021
as Self
The Rocky Horror Musical Live Stream
2020
as Narrator
Faith Based
2020
as Nicky Steele
My Boyfriend's Meds
2020
as Dr. Sternbach
The Portuguese Kid
2018
as Barry Dragonetti
Bucky and the Squirrels
2018
as Jason Alexander
The Truth Is in the Stars
2017
as Self
The Mark Lembeck Technique
2016
as Mark Lembeck
Best Worst Thing That Ever Could Have Happened...
2016
as Self
For the Love of Spock
2016
as Self
There's Something About Romcoms
2016
as Self