The MCU’s First X-Men Star Might Have Been Confirmed By Shocking Avengers Casting Report

A potential first cast member for the new X-Men team within the Marvel Cinematic Universe may have been revealed through a recent casting call for an Avengers movie. This news adds weight to a popular fan theory. While a full team hasn’t been assembled yet, the X-Men are already present in the MCU thanks to Hugh Jackman reprising his role as Wolverine in the upcoming film Deadpool & Wolverine, which also features other live-action mutants.

The new film, Avengers: Doomsday, features several familiar faces from the original X-Men movies, including James Marsden as Cyclops, Patrick Stewart as Charles Xavier, and Ian McKellen as Magneto. However, these actors are appearing as alternate versions of their characters from across the multiverse, and likely won’t be continuing in these roles after the current Multiverse Saga concludes. Because of this, I think we’ve just gotten our first confirmation of a star for the MCU’s upcoming X-Men movie.

Sadie Sink Was Rumored To Play The MCU’s Jean Grey

Sadie Sink gained widespread recognition for her role as Max Mayfield on the popular Netflix series Stranger Things, which is set to end with its fifth season, releasing in three parts later this year. Following her success on television, Sink is now poised to join a major film franchise, with reports indicating she’ll star as the lead actress opposite Tom Holland in the upcoming Spider-Man: Brand New Day movie.

Although Sadie Sink has been officially cast in the upcoming Spider-Man movie within the Marvel Cinematic Universe, her role remains a mystery. Sink has avoided revealing any details about the character she’ll be playing. Fans speculate she could be a well-known character like Gwen Stacy, Mary Jane Watson, or even a hero such as Firestar or Jean Grey.

This is especially significant for Sadie Sink’s potential future with Marvel. Before she joined the cast of Spider-Man: Brand New Day, a report about an upcoming X-Men movie in the MCU suggested Sink was the leading candidate to play Jean Grey. That same report also hinted that X-Men characters could appear in Avengers: Secret Wars.

Sadie Sink’s Avengers Movie Casting Makes Jean Grey Chances More Likely

It seems Sadie Sink will be in Avengers: Secret Wars. Although Deadline‘s recent report didn’t reveal which Marvel character she’ll play, her appearance in what’s expected to be the biggest MCU movie yet suggests she’ll have a significant role, potentially beyond a small part in Spider-Man: Brand New Day.

The upcoming Avengers: Secret Wars movie is expected to relaunch the Marvel Cinematic Universe. With this fresh start, it would make sense to introduce Marvel Studios’ new version of the X-Men, possibly near the film’s conclusion, as a continuation of the X-Men storyline from the Fox movies. Given the large number of characters planned for Secret Wars, it’s unlikely there will be much focus on Spider-Man-related heroes. This increases the possibility of Sadie Sink being cast as Jean Grey for the X-Men.

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2025-11-18 17:08