- - Katherine LaNasa Admits She 'Had Never Seen “Seinfeld'” Before Landing Role on Series

Meredith WilshereFebruary 7, 2026 at 9:00 PM

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Katherine LaNasa

Kevin Winter/GA/The Hollywood Reporter via Getty

Katherine LaNasa was just starting out in television when she got her role on Seinfeld

As a mom, she explained, she didn't watch a lot of television, Seinfeld included

Still, LaNasa said she was "pinching myself" for getting the opportunity

Katherine LaNasa says she had "never seen" Seinfeld before landing a role on the show.

The Emmy-winning actress, 59, joined Seinfeld in 1995 as Sgt. Cathy Tierny, who administers a lie detector test to Jerry Seinfeld and asks him whether he’s ever seen Melrose Place.

During a recent interview with ETalk, LaNasa described what it was like working on the set of the season 6 episode.

“I had never seen Seinfeld, nor had I seen Melrose Place, which is hilarious," she told the outlet. "Yes, I was living under a rock."

Katherine LaNasa on 'Seinfeld' season 6, episode 15

LaNasa explained that she was busy taking care of her then-young son, Henry Hopper, whom she shared with Dennis Hopper. The couple was married from 1989 to 1992.

"I was a single mom, my son’s dad was an older guy, and we didn’t watch Melrose Place," she said. "I just didn’t watch a lot of TV. I know it sounds crazy, I was just starting out in television."

While the Pitt actress went into the show without knowing exactly what she was getting into, she still "remembers how creative they were" to this day.

"There was a whole scene in that where Jason Alexander is talking with the rest of them about this girl that he’s dating and how when she took off her wig or her wig came off and she was bald," LaNasa recalled. "He was like, ‘She’s bald, treeless!’ This and that, and he just kept riffing and it was so funny and so magical just to see them rehearse and ad lib."

Katherine LaNasa on 'Seinfeld' season 6, episode 15

Of the cast, she said, “they were just so unbelievably talented.”

“Working there with Larry David, just to be chosen. Even Carol Leifer is another great writer from that time. It was just a big bucket full of talent and I was pinching myself. I couldn’t believe I was a part of it or witnessing it,” she says.

Seinfeld ran for 10 seasons from 1989 to 1998. In addition to Seinfeld and Alexander, the cast featured Julia Louis-Dreyfus, Michael Richards, Wayne Knight and Jerry Stiller. It is available to stream on Netflix.

on People

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Source: “AOL Entertainment”