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How the Cast of Seinfeld Aged from the First to Last Season

Updated December 26, 2018 25.7k views10 items

From waiting in line to be served by The Soup Nazi to proving who can be the master of his domain, viewers laughed along while watching the cast of Seinfeld for nine seasons. From the first season dropping in 1989 to the ninth season premiering in 1997, the cast aged right along with the characters on everyone's favorite show about nothing.

How old is the cast of Seinfeld? Jerry Seinfeld was 35 years old when the first season of his eponymous TV show debuted in 1989. When the series concluded in 1998 after nine seasons Seinfeld was 44. Then 28-year-old actress Julia Louis-Dreyfus joined the cast of Seinfeld for the second episode of season one. She is the only main cast member not to appear in the pilot.

Michael Richards portrayed Cosmo Kramer for all nine seasons of Seinfeld during which time he was aged 40 to 49. Jason Alexander played George Costanza from the time he was 30 to 39 years old and Jerry Stiller (Frank Costanza) was 71 when the series concluded in 1998.

Which Seinfeld cast member do you think aged the most from the first to last episode?

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  • Jerry Seinfeld (Jerry Seinfeld is listed (or ranked) 1 on the list How the Cast of Seinfeld Aged from the First to Last Season
    Photo: Seinfeld/NBC

    Jerry Seinfeld was 35 years old when the first season of his eponymous TV show debuted in 1989. When the show about nothing concluded in 1998 – after nine seasons – Seinfeld was 44.

    Following the series' finale, Seinfeld returned to the stand-up stage. He also created a show about laughing, driving, and sipping caffine with Comedians in Cars Getting Coffee.

    • Age: 66
    • Birthplace: New York City, New York, United States of America
  • Julia Louis-Dreyfus (Elaine Be is listed (or ranked) 2 on the list How the Cast of Seinfeld Aged from the First to Last Season
    Photo: Seinfeld/NBC

    Then 28-year-old actress Julia Louis-Dreyfus joined the cast of Seinfeld for the second episode of season one. She is the only main cast member not to appear in the pilot. Louis-Dreyfus maintained a starring role until the series finale when she was 37.

    Following Seinfeld, Louis-Dreyfus appeared in several shows and films until "yada, yada, yada," and winning multiple Emmys for Veep.

    • Age: 59
    • Birthplace: New York City, New York, United States of America

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  • Michael Richards (Cosmo Kramer is listed (or ranked) 3 on the list How the Cast of Seinfeld Aged from the First to Last Season
    Photo: Seinfeld/NBC

    Michael Richards portrayed Cosmo Kramer for all nine seasons of Seinfeld during which time he was ages 40 to 49. Giddy Up!

    • Age: 71
    • Birthplace: Culver City, Los Angeles, California, United States of America

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  • Jason Alexander (George Costan is listed (or ranked) 4 on the list How the Cast of Seinfeld Aged from the First to Last Season
    Photo: Seinfeld/NBC

    From "It's not a lie if you believe it" to "the correct answer is The Moops," Jason Alexander delivered some of the most hilarious lines during his nine year run on Seinfeld. He played Jerry's oldest friend George Costanza from the time he was 30 to 39 years old.

    • Age: 61
    • Birthplace: Newark, New Jersey, United States of America

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