Sadie Sink, known for her role as Max Mayfield in *Stranger Things*, is reportedly joining Tom Holland in *Spider-Man 4*. Deadline reports that Sink, whose film debut was in the 2016 film *Chuck*, will appear in the upcoming MCU installment. Filming begins later this year, with a release date set for July 31, 2026. Marvel and Sony have yet to comment on the casting.

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 introduction would impact Peter Parker's current relationship with MJ (Zendaya) remains unclear. Deadline suggests Sink will have a significant role, potentially acting as a reset following the events of *Spider-Man: No Way Home*, which saw Peter reconnecting with MJ after Doctor Strange altered everyone's memories.

Holland is currently filming Christopher Nolan's *The Odyssey*, with *Spider-Man 4* filming slated to begin after its completion, according to Deadline.

Late last year, Marvel Studios head Kevin Feige hinted at the introduction of X-Men characters in upcoming MCU films. He mentioned fans would see familiar X-Men faces in the "next few" MCU movies, without specifying which characters or films. Feige further stated that the *Secret Wars* storyline would usher in a new era for mutants and the X-Men.

Every Confirmed Mutant in the MCU (So Far)