Seinfeld Season 3 — Cast Ages at Filming

Season 3 of Seinfeld premiered on 1991-09-18. The first episode of the season was filmed around 1991. Here are the cast ages at the time of filming.

How old was each actor in Seinfeld Season 3?

ActorCharacterAge at FilmingBirthplaceAlso Known For
Jerry Seinfeld Jerry Seinfeld 37.2 years Brooklyn, NY Stand-up comedy, Bee Movie
Jason Alexander George Costanza 31.8 years Newark, NJ Stage actor, Pretty Woman
Michael Richards Cosmo Kramer 42.0 years Culver City, CA Stand-up comedy
Julia Louis-Dreyfus Elaine Benes 30.5 years New York, NY Veep, Saturday Night Live

Frequently Asked Questions

How old was Jerry Seinfeld in Seinfeld Season 3?

Jerry Seinfeld was approximately 37.2 years old when Seinfeld Season 3 was filmed around 1991.

How old was Jason Alexander in Seinfeld Season 3?

Jason Alexander was approximately 31.8 years old when Seinfeld Season 3 was filmed around 1991.

How old was Michael Richards in Seinfeld Season 3?

Michael Richards was approximately 42.0 years old when Seinfeld Season 3 was filmed around 1991.

How old was Julia Louis-Dreyfus in Seinfeld Season 3?

Julia Louis-Dreyfus was approximately 30.5 years old when Seinfeld Season 3 was filmed around 1991.

Celebrity Guest Appearances in Seinfeld Season 3

Keith Hernandez appeared as guests in Season 3.

CelebrityAppeared AsEpisodeAge at FilmingKnown For
Keith Hernandez Himself The Boyfriend (Part 1) (S03) 38.1 years The Yards, Law & Order

Celebrity Cameo FAQs

Was Keith Hernandez in Seinfeld Season 3?

Yes — Keith Hernandez appeared in Seinfeld in the episode "The Boyfriend (Part 1)" (Season 3), playing Himself.

How old was Keith Hernandez in Seinfeld?

Keith Hernandez was approximately 38.1 years old (38) when their scene in "The Boyfriend (Part 1)" was filmed around 1991.