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Jason Alexander Says Seinfeld Killed Susan Off Because the Actress Was ‘Impossible’ to Work With

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When George Costanza’s bride-to-be is killed off in an episode of Seinfeld, he was thrilled. Jason Alexander, the actor who played George, has admitted that the cast of the show was excited too.

“You know what? It’s f—ing impossible. It’s impossible,” Alexander told Howard Stern of the cast’s reactions to working with Heidi Swedberg, who played Susan.

Alexander stressed that he likes Swedberg personally, but that he “couldn’t figure out how to play off of her. Her instincts for doing a scene, where the comedy was, and mine were always misfiring. And she would do something, and I would go, ‘OK, I see what she’s going to do — I’m going to adjust to her.’ And I’d adjust, and then it would change.”

So one day Julia Louis-Dreyfus, who played Elaine, joked about killing Susan on the show. And Larry David, the show’s creator, decided to do just that. Susan met her demise licking toxic wedding invitation envelopes.

Listen to the clip below:

Read next: Hulu Announces When You Will Be Able to Stream Seinfeld

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See Photos of the Stars of TGIF, Then and Now

TGIF

John Stamos. Though Stamos’ post-Full House career seems to have largely taken place in the pages of tabloids, he has had recurring appearances of ER, Glee and The New Normal, making him a consistent presence on the small screen. He most recently appeared as Connor McClane on the series Necessary Roughness in 2013. Getty Images (2)
TGIF
Candace Cameron. Though she had a handful of roles after Full House ended its run in 1995, Cameron’s biggest TV appearance after TGIF was in the 2014 season of Dancing With the Stars, where she placed third. A resolute religious conservative, she has also penned two books, 2011’s Reshaping It All: Motivation for Physical and Spiritual Fitness and 2014’s Balancing It All: My Story of Juggling Priorities and Purpose.Getty Images (2)
TGIF
Mary-Kate and Ashley Olsen. 
Inarguably the most successful of all the TGIF alumni, the Olsen twins spun their Full House fame into an empire and launched a series of successful fashion labels including The Row and Elizabeth & James. Getty Images (2)
TGIF


Bob Saget. For nearly a decade Saget played Danny Tanner, the doting father on the super cuddly Full House. That might explain why he has since taken up a host of non-G rated projects. From directing 1998’s Dirty Work to his adult stand-up routine to guest starring on Entourage, Saget has moved far away from his TGIF days. (Though he did voice the future Ted Mosby in CBS’s largely sweet sitcom How I Met Your Mother.) To cap it all off, this year Saget released his memoir called Dirty Daddy: The Chronicles of a Family Man Turned Filthy Comedian. Getty Images (2)
TGIF
Jodie Sweetin. The former child actor moved on from Full House to work irregularly in television throughout the late ‘90s and into the aughts. In 2009, she penned the memoir 'unsweetened,' in which she revealed that she had long grappled with a meth addiction. Getty Images (2)
TGIF

Dave Coulier
. Since playing Uncle Joey on Full House, Coulier has juggled stand-up comedy, voice work and TV presenting with occasional appearances on reality series such as The Surreal Life. In 2013, he appeared as himself on an episode of How I Met Your Mother. Getty Images (2)
TGIF
Jaleel White. The man behind Steve Urkel—the most famous of all TGIF’s characters—went on to study film and television production at UCLA. He also continued to act, doing television guest spots and voice work. This year, fans might have spotted him playing Grandmaster Caz on Comedy Central’s Drunk History. Getty Images (2)
TGIF
Reginald VelJohnson. The Family Matters patriarch has worked steadily since the show ended, guest-starring on everything from Bones to General Hospital to Mike & Molly, in addition to film and theater roles. Most recently VelJohnson has had a recurring role on the Rachel Bilson vehicle Hart of Dixie, playing a small-town blogger. Getty Images (2)
TGIF
Darius McCrary. 


Since appearing as Eddie Winslow on Family Matters, McCrary has provided the voice for Jazz in 2007’s Transformers and had recurring roles on Freedom, Committed and The Young and the Restless. He most recently appeared as a regular on the Charlie Sheen series, Anger Management. Getty Images (2)
TGIF
Ben Savage. After graduating from Stanford and taking sporadic TV and film parts, the boy who once met the world returned to role of Cory Matthews in this year’s Disney Channel spin-off Girl Meets World. Getty Images (2)
TGIF
Danielle Fishel. After taking on a handful of film and television roles and earning a degree in psychology from the California State University, Fullerton, Fishel joined her former castmates and reprised the role of Topanga in Girl Meets World.Getty Images (2)
TGIF
Will Friedle. 
Once Boy Meets World ended, Friedle continued to work in kids’ television, voicing a number of animated characters such as Ron Stoppable from Kim Possible. Getty Images (2)
TGIF

Rider Strong. 
After playing Shawn Hunter, Strong continued to work in TV and starred in a number of horror movies. He also earned a BA from Columbia University and an MFA from Bennington College and took up directing. Like Savage, Strong returned to his Boy Meets World role for Girl Meets World and also directed a couple of episodes. Getty Images (2)
TGIF
Mark Curry. 
The star of Hangin’ With Mr. Cooper hit dark times in the mid-aughts after an accident in his home left him with burns on 18% of his body. The actor later said he contemplated suicide, before receiving support from friends and loved ones. He’s now the star of Bounce TV’s One Love, where he plays Pastor William Winters opposite Sheryl Lee Ralph of Moesha fame. Getty Images (2)
TGIF
Melissa Joan Hart. Since starring in Sabrina The Teenage Witch, Hart made numerous onscreen appearances, mostly playing herself. Since 2010, however, she has teamed up with another former-child star Joey Lawrence for the sitcom Melissa & Joey on ABC Family. Getty Images (2)
TGIF
Patrick Duffy. 
By the time Duffy appeared as Frank Lambert on the Brady Bunch-esque Step by Step, he was already famous for his role Bobby Ewing on Dallas in the ‘70s and ‘80s. Duffy revived his classic role in 2012, when Warner Bros. Television brought back the soap opera. Getty Images (2)
TGIF

Suzanne Somers. After playing the matriarch on Step By Step, Somers continued to work in television, most recently hosting her own show in 2012, called The Suzanne Show, and briefly appearing on The Real Housewives of Beverly Hills in 2013. However, these days she’s best known for her controversial health theories, which she has promoted in a series of books on diet, aging, cancer treatments and wellness.Getty Images (2)
TGIF
Christine Lakin. Lakin has worked in TV and film consistently since landing her role on Step By Step. Recent highlights include voicing the news anchor Joyce Kinney on Family Guy from 2009 until 2013 and appearing in this year’s Veronica Mars movie alongside Kristen Bell and Jason Dohring.Getty Images (2)

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Write to Tessa Berenson Rogers at tessa.Rogers@time.com