Seinfeld Season 1 — Cast Ages at Filming

Season 1 of Seinfeld premiered on 1989-07-05. The first episode of the season was filmed around 1989. Here are the cast ages at the time of filming.

How old was each actor in Seinfeld Season 1?

ActorCharacterAge at FilmingBirthplaceAlso Known For
Jerry Seinfeld Jerry Seinfeld 34.9 years Brooklyn, NY Stand-up comedy, Bee Movie
Jason Alexander George Costanza 29.5 years Newark, NJ Stage actor, Pretty Woman
Michael Richards Cosmo Kramer 39.7 years Culver City, CA Stand-up comedy

Frequently Asked Questions

How old was Jerry Seinfeld in Seinfeld Season 1?

Jerry Seinfeld was approximately 34.9 years old when Seinfeld Season 1 was filmed around 1989.

How old was Jason Alexander in Seinfeld Season 1?

Jason Alexander was approximately 29.5 years old when Seinfeld Season 1 was filmed around 1989.

How old was Michael Richards in Seinfeld Season 1?

Michael Richards was approximately 39.7 years old when Seinfeld Season 1 was filmed around 1989.