Updated: August 15, 2026

Marvel Studios has officially revealed the principal cast for its new X-Men movie at D23, with the film scheduled for May 5, 2028.

Marvel X-Men Cast 2028: Full D23 Casting

Marvel Studios has officially revealed the principal X-Men cast for its upcoming 2028 movie, ending months of speculation over which actors would lead the MCU's new mutant era. The announcement came at Disney's D23 Entertainment Showcase on Saturday, August 15, 2026.

The confirmed lineup includes Sadie Sink as Jean Grey, Kit Connor as Cyclops, Christopher Abbott as Professor X, Samara Weaving as Emma Frost, Inde Navarrette as Rogue and Maya Boyd as Storm. Marvel also confirmed Adam Driver as Mister Sinister, giving the reboot a major established X-Men villain. The movie is currently scheduled to arrive in theaters on May 5, 2028.

Who Is in the New X-Men Cast?

Marvel's newly announced principal cast establishes a younger generation of characters for the MCU's X-Men franchise.

• Sadie Sink — Jean Grey
• Kit Connor — Scott Summers/Cyclops
• Christopher Abbott — Charles Xavier/Professor X
• Samara Weaving — Emma Frost
• Inde Navarrette — Rogue
• Maya Boyd — Storm
• Adam Driver — Mister Sinister

The cast was presented by Marvel Studios president Kevin Feige at D23. The film will be directed by Jake Schreier, with a screenplay being developed by Lee Sung Jin and Joanna Calo.

Who Is Adam Driver Playing in X-Men?

Adam Driver is playing Mister Sinister, one of the most distinctive villains in Marvel's X-Men mythology. The character is also known by names including Nathaniel Essex, while some reports surrounding the casting have used the name Nathaniel Milbury in connection with the character's identity.

Marvel's new film positions Mister Sinister as the principal villain announced alongside the initial X-Men cast. Entertainment reports describe Driver's character as the movie's villain, although Marvel has not yet released a complete plot explaining how Sinister will be introduced into the MCU.

Who Is Mister Sinister in Marvel Comics?

Mister Sinister is the supervillain identity of Nathaniel Essex, a scientist obsessed with genetics and mutation. In the comics, he has a long connection to the X-Men, particularly their genetic histories and the Summers family.

The character is known for genetic experimentation, manipulation and an interest in mutant evolution. His comic-book history is considerably broader than simply being a traditional costumed villain, giving Marvel several possible directions for the cinematic version.

However, details about the MCU's version of Mister Sinister have not yet been fully disclosed. Readers should therefore separate established comic-book history from confirmed information about the 2028 movie.

Who Is Playing Rogue in the MCU?

Inde Navarrette is playing Rogue in Marvel Studios' new X-Men movie. Her casting was officially revealed at D23, replacing earlier speculation that other actresses, including Cailee Spaeny, might receive the role.

Navarrette has previously appeared in Superman & Lois and gained additional attention through the recent film Obsession. Her selection marks her first major role in the Marvel Cinematic Universe.

What Are Rogue's Powers?

In Marvel Comics, Rogue is a mutant whose primary ability allows her to absorb a person's memories, skills and powers through physical contact. Depending on the version of the character, prolonged contact can be dangerous for both Rogue and the person she touches.

Rogue has historically developed into one of the X-Men's most important members, despite beginning her comic-book career as an antagonist. Her complicated relationship with her abilities has also made her one of the franchise's more psychologically distinctive characters.

Marvel has not yet explained exactly how Rogue's powers will work in the new MCU film.

Who Is Maya Boyd Playing?

Maya Boyd is playing Storm, one of the most iconic members of the X-Men. The character is also known as Ororo Munroe and is traditionally associated with extraordinary weather-manipulation abilities.

Boyd's casting was among the biggest surprises of the D23 announcement because she is a relatively new name compared with several of her co-stars. Her selection gives Marvel an opportunity to introduce Storm to a new generation of audiences through a substantially younger ensemble.

Who Is Storm?

Storm is one of Marvel's most powerful mutants. Her signature ability is control over weather and atmospheric conditions, including wind, rain, lightning and temperature.

She has also been a leader of the X-Men in the comics and has a particularly important place in the team's history. The new movie will represent another live-action interpretation of the character after previous portrayals, most famously by Halle Berry and Alexandra Shipp.

Who Is Playing Professor X?

Christopher Abbott will portray Charles Xavier, better known as Professor X. Xavier is the founder of the X-Men and the leader of the school traditionally established as a refuge and training center for young mutants.

Abbott takes over a role previously associated most prominently with Patrick Stewart and James McAvoy. The new version is expected to establish Marvel Studios' own interpretation of Xavier within the MCU.

Who Is Playing Cyclops?

Kit Connor has been cast as Scott Summers/Cyclops. Cyclops is one of the founding X-Men characters and is famous for his powerful optic blasts, which he controls through specialized eyewear.

Connor's casting places him opposite Sadie Sink as Jean Grey in one of the franchise's most important character relationships. Marvel has not yet revealed how closely their relationship will follow the comics in the new film.

Who Is Playing Jean Grey?

Sadie Sink is playing Jean Grey. Sink's casting had already generated enormous attention before the full D23 announcement, but Marvel has now formally included her in the principal X-Men lineup.

Jean is one of Marvel's most powerful telepaths and telekinetics and has historically been closely associated with the Phoenix Force. Marvel has not yet confirmed whether the Phoenix storyline will be part of this first MCU X-Men film.

Who Is Emma Frost in the New X-Men Cast?

Samara Weaving will play Emma Frost. Emma is a powerful telepath who can also transform her body into an exceptionally durable diamond-like form in the comics.

Emma has historically occupied both villainous and heroic roles. She was once associated with the Hellfire Club before becoming an important ally and member of the X-Men. Marvel has not yet revealed whether the new film will follow that history.

Is Cailee Spaeny Playing Rogue?

No. Cailee Spaeny has not been announced as Rogue. Before D23, Spaeny's name circulated in reports and fan speculation surrounding the role, but Marvel's official casting announcement instead confirmed Inde Navarrette as Rogue.

That means Navarrette is the confirmed Rogue for the announced X-Men cast as of August 15, 2026. Claims that Spaeny is playing Rogue should be treated as outdated or unconfirmed unless Marvel announces an additional role for her.

Who Is Nathaniel Essex?

Nathaniel Essex is the real name behind Mister Sinister in Marvel Comics. A scientist fascinated by evolution and genetics, Essex eventually becomes the villain known as Mister Sinister.

This explains why searches for terms such as Nathaniel Essex Marvel, Nathaniel Milbury Marvel and Nathaniel Milbury X-Men are closely connected to the current casting news. However, the new film's exact treatment of Essex, including which aliases or identities are used on screen, has not been fully explained by Marvel.

Is Nathaniel Milbury Mister Sinister?

The name Nathaniel Milbury is associated with Mister Sinister in reporting about the new film, but it should not be confused with the character's core comic-book identity of Nathaniel Essex.

Reports have described Adam Driver's character as Mister Sinister and also connected the role with the Milbury name. The broader comic-book history identifies the character as Nathaniel Essex.

When Is the New X-Men Movie Coming Out?

The new Marvel Studios X-Men movie is scheduled for theatrical release on May 5, 2028. The date was announced alongside the cast at D23. As with other major studio productions, the schedule could change during production, but May 5, 2028 is the currently announced release date.

Who Is Directing Marvel's X-Men?

Jake Schreier is directing the new X-Men movie. Schreier previously directed Marvel Studios' Thunderbolts*, making the project another major MCU assignment for the filmmaker.

Lee Sung Jin, who worked with Schreier on Thunderbolts*, and Joanna Calo are credited with developing the screenplay.

Is This the MCU's First X-Men Movie?

Yes, this film represents Marvel Studios' major new introduction of the X-Men as an integrated MCU team. Previous mutant appearances and legacy X-Men characters have appeared or been teased across MCU projects, but this project establishes a new principal X-Men cast for the franchise going forward.

Marvel has already signaled a broader mutant storyline through projects including Avengers: Doomsday, whose official Marvel page explicitly promotes the return of the X-Men.

Will Patrick Stewart Return as Professor X?

Patrick Stewart is not the new Professor X in this X-Men movie. Christopher Abbott has been officially cast as Charles Xavier for the 2028 film.

Stewart's future relationship to the MCU's mutant storyline is a separate question. Marvel has promoted the return of the X-Men in Avengers: Doomsday, but that should not be treated as confirmation that Stewart will appear in this specific X-Men movie.

What About the Rest of the X-Men?

The D23 announcement revealed the principal cast currently being publicized, but it does not establish that every major X-Men character has been announced. Characters such as Beast, Magneto, Mystique, Wolverine, Nightcrawler and others have not been confirmed as part of the announced principal lineup based on the current information.

That leaves room for additional casting announcements as Marvel continues development and production. Online rumors should not be treated as confirmed casting until Marvel or another reliable source verifies them.

Why the New X-Men Cast Matters

The announcement represents a major turning point for Marvel's treatment of the mutant franchise. Rather than simply continuing the Fox-era movies, Marvel Studios is building a new ensemble around younger performers while retaining some of the most recognizable names and relationships from the comics.

The combination of Sink, Connor, Navarrette, Boyd, Abbott, Weaving and Driver gives Marvel a lineup capable of supporting both the core X-Men story and a wider MCU mutant storyline. The presence of Mister Sinister is particularly notable because the character has never received a major live-action movie portrayal at this scale.

What Happens Next?

Marvel is expected to reveal additional information as production advances, including further casting, character details, promotional material and eventually the first trailer.

For now, the most important confirmed information is the principal cast and the May 5, 2028 theatrical release date. Details involving characters not included in the D23 announcement should be treated as rumors until officially confirmed.

Bottom Line

Marvel Studios has officially unveiled its new X-Men cast. Sadie Sink is Jean Grey, Kit Connor is Cyclops, Christopher Abbott is Professor X, Samara Weaving is Emma Frost, Inde Navarrette is Rogue, Maya Boyd is Storm and Adam Driver is Mister Sinister. The film is scheduled for May 5, 2028.

The announcement also resolves several major casting questions. Inde Navarrette, not Cailee Spaeny, is the confirmed Rogue, while Driver is officially joining the MCU as Mister Sinister. The rest of the film's cast remains open to future announcements, so unconfirmed names circulating online should be treated cautiously.