In November 2021, the You writers' country teased that accumulation connected play 4 had begun.

"Welcome to the play 4 writers' room, present officially unfastened for business," the station said.

In a astonishment twist, the play 3 finale recovered Joe successful a Parisian café chasing after Marienne (Tati Gabrielle).

While sipping an espresso, Joe fantasized astir moving into her successful the City of Love. "Marriage astir ruined some of us, but we escaped." helium ruminated. "Maybe the scars connected our hearts marque them stronger."

While it was unclear if Joe really tracked down the azygous mother, an ominous informing closed retired the season: "All I know, mon amour, is I'll hunt the satellite if I person to. I volition find you."

It turns retired mounting the 4th play overseas was the idea of You's co-creator Greg Berlanti. But volition Joe enactment successful Paris? That's the question.

At the extremity of play three, Joe killed his woman Love (Victoria Pedretti) and near down their babe Henry. Viewers were near wondering if Joe, nevertheless cold-blooded, was truly conscionable going to abandon his lad forever.

Showrunner Sera Gamble promised answers. "That's going to beryllium an ongoing conversation, due to the fact that no, you can't unreal thing that immense astir a quality didn't happen," Gamble said successful an interrogation with E! News. "I deliberation it volition signifier him from this infinitesimal forward. And adjacent his nonstop program of erstwhile and if helium would instrumentality for his lad is thing that we will...if we get to the writers room...come unneurotic and speech astir for hours and hours and hours betwixt snacks."

The White Lotus and Euphoria alum Lukas Gage will prima successful the show's 4th play arsenic Adam, "an ex-pat American, the youngest lad of a affluent East-Coast magnate."

According to his quality description, Adam is "famous for spectacularly failing to conscionable the standards of his successful, venerable family. An entrepreneur and a gambler, Adam is simply a lukewarm and comic enactment big and accelerated friend. But underneath, Adam is hiding a trove of secrets and papering implicit problems with dense self-medication."

It's besides teased that Adam whitethorn instrumentality his affluent woman for granted. Sounds similar the nonstop concern Joe would similar to swoop successful to.

In November, Cardi B received a letter from Joe Goldberg.

"Hello, You…My stalking and sidesplitting whitethorn marque maine a certified freak, 7 days a week, but it besides brought maine to…you," it began, borrowing a lyric from Cardi B's opus "WAP." "Cardi B, you person a mode with societal media. You're meaningful. Substantive. I conscionable similar you. You're authentic and nuanced…just arsenic you are with your music. You support maine connected my toes, the ones that are left, astatine least. You can't beryllium caged in, and it's refreshing."

The missive was the culmination of a societal media lovefest betwixt Cardi and the real-life Penn Badgley.

Cardi is specified a instrumentality of some Penn's and the show's that she pitched an idea for play four.

"So it's occurrence 1 and I'm astatine Paris Fashion week shutting it down! I crook astir and determination stands YOU. Ok decorativeness it disconnected @netflix," she tweeted.

Sadly, despite Penn Badgley telling Entertainment Tonight they were "trying to marque thing happen," it didn't travel together. Maybe successful play 5?

Peach 2.0? There's a caller queen bee successful town, and her sanction is Kate (Charlotte Ritchie).

"Kate tends to beryllium 'the big successful the room,' and has embraced the moniker of 'icy bitch,'" Netflix's statement teased. "She's particularly protective of champion person Lady Phoebe, a saccharine and trusting idiosyncratic whose utmost wealthiness and fame thin to pull opportunists. Kate prefers 'arrangements' to love, which is wherefore she dates amusive but self-centered partier Malcolm. When Malcolm invites Joe, an American outsider of nary evident means, into their privileged world, Kate not lone instantly dislikes him, she powerfully suspects thing astir the antheral is not what helium seems."

Rather than the streets of Paris, Penn Badgley was spotted filming arsenic Joe Goldberg successful London. And yes, he's successful costume. Can't you spot this dark-colored shot cap?

In a June interrogation with Entertainment Tonight, Badgley confirmed that play 4 would instrumentality spot successful London. The crushed they chose London implicit Paris?

"To beryllium real, it's cheaper," helium said.

On April 1, Netflix announced the caller formed that volition beryllium joining Penn Badgley and the gang.

Series regulars include Tilly Keeper arsenic Lady Phoebe, Amy Leigh Hickman arsenic Nadia and Ed Speleers arsenic Rhys, arsenic good arsenic recurring roles specified as Niccy Lin, Aidan Cheng, Stephen Hagan, Ben Wiggins, Eve Austin, Ozioma Whenu, Dario Coates, Sean Pertwee, Brad Alexander, Alison Pargeter and Adam James. 

Penn Badgley said that it wouldn't conscionable beryllium the mounting getting a facelift successful play four, helium said that the amusement itself volition consciousness chiseled and new.

"The code is akin but it's shifting successful that determination is simply a antithetic format. We're utilizing a antithetic format," helium told Entertainment Tonght. "It's astir similar we're shifting the genre slightly. And I deliberation it works."