Sadie Sink, known for her role as Max Mayfield in *Stranger Things*, is reportedly joining Tom Holland in *Spider-Man 4*. Deadline reports Sink will appear in the upcoming MCU film, slated for release on July 31, 2026, with filming beginning later this year. Marvel and Sony have declined to comment.

Deadline speculates Sink's role could be either Jean Grey or another iconic redheaded Spider-Man character, possibly hinting at Mary Jane Watson. However, how this would interact with Peter Parker's existing relationship with MJ (Zendaya) remains unclear. Deadline suggests Sink will have a significant role, potentially resetting elements following *Spider-Man: No Way Home*, where Peter's identity was erased.

Holland is currently filming *The Odyssey*, with *Spider-Man 4* production scheduled to commence afterward.

Late last year, Marvel Studios head Kevin Feige hinted at X-Men introductions in upcoming MCU films, mentioning recognizable X-Men characters in "the next few" movies, without specifying which characters or films.

Feige further stated that the narrative leading to *Secret Wars* sets the stage for a new era of mutants and X-Men, emphasizing their importance in the MCU's future.

Every Confirmed Mutant in the MCU (So Far)

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