Spider-Man: Brand New Day’s Most Talked About Character Quietly Sets Up Marvel’s X-Men Future
Marvel's Spider-Man: Brand New Day introduces Jean Grey (Sadie Sink) into the MCU's main timeline, marking the first proper X-Man to appear in that universe, but the film unusually casts her as a villain rather than the compassionate hero familiar from earlier comics, cartoons and the two prior X-Men film trilogies. This reversal of her traditional arc is a deliberate storytelling choice that reshapes how Marvel plans to build towards its X-Men saga, replacing the familiar "hero loses control" narrative with a more ambiguous question of whether a villain can become a hero at all.
In the film, Jean searches New York for her missing sister by mind-hopping between strangers, eventually being captured by the Department of Damage Control after Spider-Man intervenes; she then discovers her sister died in the same facility, a trauma that unlocks darker powers. Without a moral compass, she forces people into dangerous acts and, in one pivotal scene, hijacks MJ's (Zendaya) mind to kiss Peter Parker (Tom Holland), only for him to learn MJ has no memory of him at all. The article compares this approach to how Homecoming reinvented young Peter Parker, suggesting Marvel is again subverting expectations by starting Jean's story from her darkest, Dark Phoenix-style point rather than building up to it.
- Sadie Sink's Jean Grey debuts in the MCU as Brand New Day's villain.
- Her arc inverts the usual hero-to-Phoenix storyline seen in past X-Men films.
- The approach hints at Marvel's unconventional plans for its future X-Men saga.
New here? Start with this
Marvel's Spider-Man: Brand New Day brings Jean Grey, played by Sadie Sink, into the main Marvel Cinematic Universe for the first time, making her the first X-Men character to properly appear in that shared story world. Jean is a mutant with powerful telepathic and telekinetic abilities who has long been a central figure in X-Men comics, cartoons and earlier separate film series, usually portrayed as a hero who occasionally struggles to control her powers.
In this new film, the character is instead introduced as a villain, searching for her missing sister and coming into conflict with Spider-Man, played by Tom Holland, and his allies, including MJ, played by Zendaya. This is a departure from her familiar backstory and has drawn attention because it signals how Marvel Studios intends to lay the groundwork for a future X-Men storyline within its films.
The choice matters because Marvel is in the early stages of folding the X-Men, long kept separate due to past licensing arrangements, into its main cinematic universe. How Jean Grey is portrayed here is being read as an early clue to the tone and direction of that much larger project still to come.