Which character from "Friends" had a twin sister named Ursula?

Identical twins on TV usually come in matching outfits with synchronized personalities. But on NBC's "Friends," one character's evil twin sister existed purely to make their life miserable. While Ursula only appeared in a handful of episodes, she managed to create some of the series' most awkward moments. So which friend was cursed with this chaos-causing double?

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The answer is: Phoebe Buffay

Ever wonder why Phoebe Buffay seemed so comfortable being the weird one? Turns out she was the normal twin. Since 1992, Lisa Kudrow had been playing Ursula, a spaced-out waitress on NBC's "Mad About You" who terrorized Paul and Jamie with her unique brand of terrible service at Riff's restaurant. When Kudrow landed "Friends" two years later, the writers transformed a potential casting conflict into comedy gold: they made them sisters.

Ursula was everything Phoebe wasn't - calculating, cold, and completely unbothered by other humans' existence. She drifted through life leaving chaos in her wake, whether she was starring in adult films under Phoebe's name, stealing her birth certificate, or dating Joey (a betrayal that gave us one of TV's more awkward double dates). Their strained relationship revealed the steel beneath Phoebe's whimsy - turns out even the most free-spirited Friend had family drama.

The twin storyline required some classic TV wizardry - split screens, body doubles, and careful editing created the illusion of Kudrow arguing with herself. But the real magic was how these encounters deepened Phoebe's character. Every Ursula appearance reminded us that Phoebe's relentless optimism wasn't naivety - it was a choice made by someone who knew exactly how dark family could get.

While Ursula appeared in just eight episodes across "Friends'" run, her sporadic appearances always delivered. Whether she was forgetting to tell Phoebe about their grandmother's death or casually revealing she'd been using her sister's name in adult films, each twin encounter highlighted the delicious contrast between the sisters. Phoebe might have been the weird Friend, but Ursula showed us what real chaos looked like - and made us appreciate our favorite masseuse's peculiar brand of sanity all the more.