Chelsea is an aspiring actress Cosmo Kramer began seeing while he was living in Los Angeles. Chelsea appears in "The Trip, Part 1" and is played by Debi A. Monahan. Chelsea met Kramer while both were auditioning for roles in a horror movie. She later takes a copy of Kramer's movie script for The Keys and tells him she will give it to her manager. Her manager is currently working on getting her the starring role in a mini-series based on Adolf Hitler's girlfriend, Eva Braun, for German television. Chelsea is later murdered by The Smog Strangler. Kramer is callously unbothered by her death and tells Jerry Seinfeld he wasn't looking for a long-term relationship with her anyway.

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