Season 9 of Seinfeld premiered on 1997-09-25. The first episode of the season was filmed around 1997. Here are the cast ages at the time of filming.
| Actor | Character | Age at Filming | Birthplace | Also Known For |
|---|---|---|---|---|
| Jerry Seinfeld | Jerry Seinfeld | 43.3 years | Brooklyn, NY | Stand-up comedy, Bee Movie |
| Jason Alexander | George Costanza | 37.9 years | Newark, NJ | Stage actor, Pretty Woman |
| Michael Richards | Cosmo Kramer | 48.1 years | Culver City, CA | Stand-up comedy |
| Julia Louis-Dreyfus | Elaine Benes | 36.6 years | New York, NY | Veep, Saturday Night Live |
| Patrick Warburton | David Puddy | 32.8 years | Paterson, NJ | Rules of Engagement, Family Guy |
| Daniel von Bargen | Mr. Kruger | 47.2 years | Cincinnati, OH | Fargo, O Brother Where Art Thou |
Jerry Seinfeld was approximately 43.3 years old when Seinfeld Season 9 was filmed around 1997.
Jason Alexander was approximately 37.9 years old when Seinfeld Season 9 was filmed around 1997.
Michael Richards was approximately 48.1 years old when Seinfeld Season 9 was filmed around 1997.
Julia Louis-Dreyfus was approximately 36.6 years old when Seinfeld Season 9 was filmed around 1997.
Patrick Warburton was approximately 32.8 years old when Seinfeld Season 9 was filmed around 1997.
Daniel von Bargen was approximately 47.2 years old when Seinfeld Season 9 was filmed around 1997.
Lloyd Bridges appeared as guests in Season 9.
| Celebrity | Appeared As | Episode | Age at Filming | Known For |
|---|---|---|---|---|
| Lloyd Bridges | Izzy Mandelbaum | The Burning (S09) | 85.1 years | Sea Hunt, Hot Shots! |
Yes — Lloyd Bridges appeared in Seinfeld in the episode "The Burning" (Season 9), playing Izzy Mandelbaum.
Lloyd Bridges was approximately 85.1 years old (85) when their scene in "The Burning" was filmed around 1998.