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.

Known For

Career Timeline

198119871993199920052011201720232026
  1. 2026
    Jimmy

    Louis B. Mayer • Acting

  2. 2025
    The Electric State

    Ted / Wingman • Acting

  3. 2025
    The Gettysburg Address

    Noah Brooks (voice) • Acting

  4. 2025
  5. 2025
    Stealing Pulp Fiction

    Dr. Mendelbaum • Acting

  6. 2023
    Leo

    Jayda's Dad (voice) • Acting

  7. 2023
    Dick Van Dyke: 98 Years of Magic

    Self - Performer • Acting

  8. 2022
Jason Alexander - Aperture