Marvel's New X-Men Cast Is Finally Here — Adam Driver, Sadie Sink & Kit Connor Lead a Wild D23 Reveal

Marvel Finally Unveiled Its X-Men Cast at D23 2026 — and It's a Total Power Move

Okay, Marvel fam, do we talk about anything else this week? After years of rumors, Marvel Studios president Kevin Feige walked onstage at D23 Expo 2026 in Anaheim and dropped a megaton of an announcement: the new X-Men movie finally has a full cast, a final title, and a release date of May 5, 2028. Directed by Jake Schreier (of Thunderbolts* fame), this is the mutant reboot the MCU has been building toward since Spider-Man: Brand New Day teased Jean Grey's arrival this summer. Let's break down who's suiting up.

The New Faces of the X-Men

Marvel isn't messing around with this reboot. The cast is a wild mix of indie darlings, rising stars, and one former Star Wars villain who got a very funny fake-out on stage. Here's the confirmed lineup:

• Adam Driver as Mister Sinister — the Kylo Ren actor played the crowd for a second by claiming he was Magneto before revealing his true role as the scheming Nathaniel Milbury, a.k.a. Mister Sinister. Villain energy loading…
• Christopher Abbott as Professor X — the Poor Things star reunites with his old Girls co-star to lead Xavier's school for the gifted.
• Sadie Sink as Jean Grey — the Stranger Things breakout finally gets her proper MCU debut after that secret role in Spider-Man: Brand New Day.
• Kit Connor as Cyclops — the Heartstopper lead takes over the visor from James Marsden and Tye Sheridan. He's also locked into the 2028 Elden Ring movie, so this lad is booked and busy.
• Samara Weaving — the Ready or Not star rounds out the roster as one of the team's most iconic members.

More Than Just Mutants

The X-Men weren't the only thing Marvel teased at D23. The studio dropped the first VisionQuest trailer, wrapping up the trilogy that started with WandaVision — and it looks gloriously weird. Paul Bettany is back as Vision, and yes, James Spader returns as Ultron, looking suspiciously like… well, a guy. Over on the Star Wars side, Lucasfilm gave us a first look at Ahsoka Season 2 from Dave Filoni, with Rosario Dawson back as the former Jedi.

Bottom Line

This is easily the biggest casting drop of the year, and it confirms Marvel is betting hard on a mutant renaissance. With Avengers: Doomsday still looming and a 2028 X-Men release locked in, the road ahead is stacked. Whether you're here for Driver's sinister energy or Sink's psychic firepower, this one's worth marking on the calendar. Who's your early favorite?