Marvel finally named its X-Men, and Adam Driver is the villain
At D23, Marvel revealed the core cast of its untitled X-Men film: Sadie Sink as Jean Grey, Kit Connor as Cyclops, Christopher Abbott as Professor X, Samara Weaving as Emma Frost, and Adam Driver as Mister Sinister. It opens May 5, 2028.
Marvel Studios spent years letting the X-Men reboot sit as speculation. At D23 in Anaheim, it put six faces on stage and a seventh on video.
Kevin Feige and director Jake Schreier brought out Sadie Sink, already established as Jean Grey after her debut in Spider-Man: Brand New Day, followed by Kit Connor as Cyclops, Christopher Abbott as Professor Charles Xavier, Samara Weaving as Emma Frost, Inde Navarrette as Rogue, and Maya Boyd as Storm.
Most of them had met backstage for the first time that day.
The Adam Driver reveal
The last name came in a prerecorded video, and Driver played it for a laugh.
Filming from a soundstage at Pinewood, he said he and Feige had been talking for years about him joining the MCU and had finally found the right film. Then he began announcing his character as “Mag,” stopped himself, and corrected course to Nathaniel Milbury.
Milbury is one of the aliases of Mister Sinister, the geneticist obsessed with mutant DNA, better known in the comics as Nathaniel Essex. It’s a villain the old Fox X-Men films spent years teasing and never delivered.
What the casting suggests
Marvel hasn’t described the plot, but the choice of antagonist points somewhere specific.
Mister Sinister’s whole deal is mutant genetics, breeding programs, and experimentation, and he has a long comics history with exactly these characters, Cyclops and Jean Grey in particular. Building a first MCU X-Men film around him implies a story about where mutants come from and what’s being done to them, rather than a straightforward team-assembles origin.
Schreier previously directed Thunderbolts*, which is a reasonable signal about tone. Feige said more casting news is still coming.
The untitled film opens May 5, 2028.
The rest of the Marvel slate
X-Men wasn’t the only thing Marvel brought.
The cast of Avengers: Doomsday appeared on stage, with Robert Downey Jr., Chris Evans, and Hayley Atwell presenting a special look centered on Doctor Doom tearing through timelines and unleashing Sentinels. That one arrives December 18, 2026.
Marvel also showed a first deep dive into VisionQuest, the Disney+ series following a more human Vision contending with multiple AIs in his head, premiering October 14, 2026.
Where this sits
The X-Men reveal is the piece with the most weight behind it, for a simple reason.
Marvel bought Fox in 2019 and has spent seven years working toward putting mutants in its main universe. Sink’s Jean Grey turning up in the biggest movie of the year was the soft launch. This was the actual one, with a director, a date, a cast, and a villain the previous rights holder never managed to use.
Whether it works is a 2028 question. What D23 established is that it’s real, it’s cast, and Marvel is confident enough to put the whole lineup on a stage twenty-one months out.
Article compiled and edited by Derek Gibbs (entertainment editor) and the Clownfish TV newsroom.
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Hat Tips:
Marvel.com (August 2026), verified for the full cast reveal and character assignments, Driver’s prerecorded video and his Magneto misdirect, his Pinewood location and years-long conversations with Feige, Feige’s note that more casting is coming, and the May 5, 2028 release date
Deadline (August 16, 2026), verified for the D23 announcement roundup, Samara Weaving and Kit Connor having been reported earlier, and the broader event slate
Complex (August 2026), verified for Schreier’s Thunderbolts* credit, the VisionQuest deep dive and its October 14 premiere, the Avengers: Doomsday special look featuring Doctor Doom and Sentinels, and the cast meeting for the first time
ABC News and The PC Enthusiast (August 2026), verified for the Doomsday stage appearance by Downey, Evans and Atwell, the December 18 release, and the Mister Sinister and Nathaniel Essex comics background