If season 3 of Euphoria is to be the HBO’s show’s last (at the time of publishing this article, nothing has been confirmed), it’s certainly going out with a bang and sparing no expense with A-list cameos. There’s Lexi’s showrunner boss Patty Lance, played by Sharon Stone; The Silver Slipper’s bedazzled neck brace–wearing stripper Magick, played by Rosalía; Alamo Brown’s henchman G, played by former NFL pro Marshawn Lynch; Brown’s mother, played by Danielle Deadwyler; Trisha Paytas as herself; and this week’s notable intro featuring a flashback with Colman Domingo’s Ali alongside a wisecracking prostitute played by Natasha Lyonne.

Lyonne’s character in the gritty drama from Sam Levinson has been under wraps since her casting was announced last October. Even HBO’s reps remained mum on details in the days leading up to the episode’s release on Sunday. When we jumped on a call with Lyonne two weeks before, it wasn’t surprising that the actress, writer, director, and producer was also tight-lipped out of fear of entering spoiler territory. But that didn’t stop Lyonne, who was heading out to Cannes the next morning, from revealing to Who What Wear the funny and serendipitous story behind how her buzzy guest role came to be.

Natasha Lyonne photographed by Andrew Arthur for Who What Wear. She is is shot with her mouth open wearing an oversize pinstripe blazer and trousers with a nude sheer top and a brown suede bag.

On meeting Levinson and devising her guest role on Euphoria season 3:

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I met Sam at Colman Domingo’s private dinner for [his film] Rustin, and we immediately hit it off. We spent the after-dinner part huddled up on a little sofa just in the zone. Sam is brilliant, and we have a lot of touchpoints that basically made us double over laughing. Cut to the end of the story, this became a joke between me, Colman, and Sam for maybe a year about how crucial it was that Colman and I were gonna get to do this in this season of Euphoria. But it made no sense. None of us thought it was actually happening. It was definitely a running joke on a text message between the three of us for a year, and then suddenly, I got a text from Sam saying, “Okay, it’s gonna be next week, Natasha.” And it was just like, “Well, of course it is, Sam. I’ll see you there.”

Natasha Lyonne photographed by Andrew Arthur for Who What Wear. She is sitting in a clear foldout chair wearing a pinstripe blazer on one shoulder, a black bra top, and pinstripe trousers.

On her friendship with Colman Domingo: