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The Mystery of Sebastien Solved: Where You’ve Seen ‘Nobody Wants This’ Newcomer Andrew Rannells Before

Published October 31, 2026, at 2:00 PM
By Danielle Long

A fresh season of the hit Netflix romantic comedy series Nobody Wants This has officially landed on the platform, bringing with it all the signature wit, relationship dilemmas, and cultural hurdles that made the show an instant cultural phenomenon. However, as viewers dive into the latest episodes, many are finding themselves pausing the screen, scratching their heads, and asking a familiar question: Where on earth do I know that face from?

Why Joanne's New Nemesis on 'Nobody Wants This' Season 3 Looks So Familiar

The object of this widespread television curiosity is none other than acclaimed stage and screen actor Andrew Rannells. A celebrated Broadway favorite who has quietly and brilliantly built a reputation for stealing scenes across some of television’s most beloved and talked-about comedies, Rannells has joined the ensemble cast for the show’s third outing. His latest television role has naturally sparked a wave of nostalgia among fans, making it the perfect moment to take a comprehensive refresher course on his most memorable on-screen appearances, ranging from groundbreaking HBO comedies to political satires and blockbuster Broadway stages.

In the third season of Nobody Wants This, Rannells steps into the fictional world created by creator Erin Foster as Sebastien, a fellow student who crosses paths with protagonist Joanne in an Intro to Judaism class. Rather than serving as a background extra or a simple classmate, Sebastien quickly establishes himself as Joanne’s ultimate nemesis in the classroom setting. As Joanne, brilliantly portrayed by Kristen Bell, continues to navigate the deeply personal and often complicated journey of exploring a conversion to Judaism while simultaneously building a serious life and future with her rabbi boyfriend, Noah, played by Adam Brody, Sebastien is never far behind with a critique, a sharp observation, or a pointed opinion about her unfolding romance.

He is precisely the kind of sharp-tongued, quick-witted character who excels at planting a seed of doubt precisely when a person least needs to hear it. This dynamic injects a fresh and thoroughly entertaining layer of friction into the narrative arc of the season. Despite the constant head-butting, creative tension, and clear friction between them, Joanne and Sebastien find themselves repeatedly gravitating back into each other’s orbits, forced to interact and share screen time in ways that continuously test Joanne’s patience and resolve. For Rannells, playing the sophisticated thorn in the side of Kristen Bell’s character offers a masterclass in comedic timing, allowing him to lean into the dry, sarcastic delivery that has become a hallmark of his illustrious career.

Why Joanne's New Nemesis on 'Nobody Wants This' Season 3 Looks So Familiar

For viewers who find themselves recognizing Rannells’ distinctive cadence, expressive facial expressions, and comedic timing, the most likely culprit for that lingering sense of familiarity is HBO’s critically acclaimed and culturally defining comedy-drama series Girls. Created by and starring Lena Dunham, the show featured Rannells in a career-defining, multi-season run as Elijah Krantz, the charismatic, ambitious, and frequently chaotic ex-boyfriend of Dunham’s character, Hannah Horvath.

Throughout his time on the series, Elijah evolved from a complicated ghost from Hannah’s past into one of her closest confidants, trusted roommates, and emotional anchors. After publicly coming out as gay, Elijah became an integral part of the show’s intricate ensemble web, delivering countless unforgettable, razor-sharp one-liners while navigating his own messy romantic entanglements, professional ambitions in the brutal world of musical theater, and interpersonal disasters alongside Hannah, Marnie, Jessa, and Shoshanna. Rannells appeared prominently throughout the entire six-season run of Girls, cementing his status as a master of ensemble comedy and leaving an indelible mark on television history with a character that was simultaneously exasperating, deeply loyal, and endlessly endearing.

While his work on Girls remains a high watermark for television comedy, Rannells has scarcely slowed down in the years since the show wrapped. More recently, the versatile performer crossed over into the Hulu comedy series Deli Boys, taking on the role of Andrew Chadwater, a high-powered district attorney whose personal ambitions stretch far beyond the courtroom and point directly toward the mayor’s office.

Why Joanne's New Nemesis on 'Nobody Wants This' Season 3 Looks So Familiar

In the second season of Deli Boys, Chadwater’s meticulously planned political career and pristine public image collide head-on with a chaotic underground world of criminal empires, shady business dealings, and high-stakes political maneuvering. The role requires Rannells to balance straight-laced legal authority with the absurd comedic escalation characteristic of the series, giving him yet another expansive canvas to flex his formidable comedic chops and prove his ongoing range as a television actor.

Of course, television audiences and comedy fans represent only a fraction of Rannells’ dedicated global following. Long before he became a fixture of prestige cable and streaming comedies, Rannells was—and remains—a titan of the American theater stage. He achieved widespread mainstream acclaim and a Tony Award nomination for his iconic starring turn as Elder Price in the mega-hit Broadway musical The Book of Mormon, a role that showcased his powerhouse vocal talents alongside his impeccable comedic delivery. His extensive theatrical resume has also included acclaimed runs in other major Broadway productions, cementing his dual status as both a theater royalty heavyweight and a sought-after television star.

Beyond Girls, Deli Boys, and his theatrical milestones, Rannells’ television footprint spans an impressive array of diverse projects. His recognizable face and comedic timing have graced screens in a wide variety of memorable television ventures, including Ryan Murphy’s short-lived yet beloved NBC comedy The New Normal, Showtime’s Wall Street satire Black Monday, and more recently, Netflix’s contemporary romantic exploration Too Much.

Why Joanne's New Nemesis on 'Nobody Wants This' Season 3 Looks So Familiar

With his introduction to the universe of Nobody Wants This as the formidable and opinionated Sebastien, Rannells adds yet another memorable character to an already stacked television résumé. As season three continues to stream on Netflix, viewers can rest easy knowing that the familiar face driving Kristen Bell’s character up the wall belongs to one of the most reliably entertaining performers working across both stage and screen today.

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