In December 2024, longtime industry insider Jeff “The In” Sneider passed on word from a source that Stranger Things and The Whale star Sadie Sink had emerged as the front runner to portray Jean Grey in the MCU. Given that Marvel Studios X-Men film still hadn’t landed a director (Thunderbolts* helmer Jake Schreier has since locked down the job), Sneider’s sources believe that the studio was keen on casting the role of Jean Grey at the time to allow the character to appear in either or both of its next two Avengers films, Avengers: Doomsday and Avengers: Secret Wars.
In March, Sink was indeed cast in a major MCU role, joining Spider-Man: Brand New Day as Tom Holland‘s co-star, the the identity of her character was not revealed. Since then, Sneider and his podcast co-host John Rocha have heard that Sink could be playing a Mary Jane Watson Variant, the daughter of Toby Maguire‘s Peter Parker and Kirsten Dunst‘s MJ, Mayday Parker, and an “alternate universe Gwen Stacy.” Now, just as fellow insider Kristian Harloff corroborated Sneider ‘s Stacy scoop by reporting that he had been given a “pretty good guarantee” that Sink is set to play Gwen Stacy in the 2026 flick, Sneider has changed course again!
During his latest podcast, Sneider shared that he’s “still hearing Jean Grey” when asking his sources about Sink’s role.
The amount of conflicting insider information around Sink’s role is incredible, especially considering the fluctuating nature of the tea coming from Sneider ‘s sources. However, given what’s known about the film, Grey may actually make sense within the plot, though how the young mutant’s origin would be handled or if the studio would want to include another major Marvel character when The Punisher and Hulk are already set for pivotal parts in the film are both questions worth considering.
For now, it seems all fans can do is speculate and debate as Sink has yet be caught on camera on the Glasgow, Scotland sets. Should she indeed be Grey, she may not have a large part in the action until after Mark Ruffalo’s Bruce Banner turns “savage.” The two have faced off in the pages of Marvel Comics with Grey using her incredible telepathic and telekinetic abilities to get the upper hand over the Hulk.
Source: The Hot Mic Podcast
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