The post-credits scene ofSpider-Man: Brand New Daydelivers one of the Marvel Cinematic Universe’s most anticipated reveals: Sadie Sink appears as Jean Grey, bringing the X-Men saga into the MCU with a moment that fans and critics have quickly seized on.
The scene, which follows the conclusion of the film starring Tom Holland as Peter Parker, has become the subject of intense discussion among moviegoers. Several outlets have published explainers on its meaning, focusing on two threads: where Peter Parker goes from here and how the moment sets upAvengers: Doomsdayand the films that follow.
Jean Grey is one of the most iconic members of the X-Men in Marvel Comics, and her appearance in a Spider-Man film has been widely interpreted as the clearest signal yet that Marvel Studios is preparing to bring its mutant characters into the main continuity. The MCU has spent recent phases laying groundwork for mutants, but a character of Jean Grey’s stature stepping directly into a blockbuster release marks a significant step beyond those earlier hints.
The scene’s connection toAvengers: Doomsdayhas drawn particular attention. Coverage of the ending suggests the post-credits moment ties Peter Parker’s story to the larger conflict building toward that crossover, while also leaving the door open for more X-Men appearances in the next phase of the franchise.
Sadie Sink, widely recognized for her starring role in the Netflix seriesStranger Things, plays the character. Her casting gives the MCU a young, established performer at the center of one of its biggest future storylines.
Online search interest in the end-credits scene increased sharply after the film reached theaters, as audiences sought explanations of its final moments. The reaction underscores how carefully Marvel Studios has guarded the scene’s details and how much weight the moment carries for the future of the franchise.
The stakes are considerable. The X-Men count among the most popular characters in Marvel’s library, and their introduction to the MCU has been a subject of prolonged speculation since Disney acquired the film rights to the characters as part of its purchase of 21st Century Fox. Jean Grey’s debut suggests the studio plans to integrate mutants into the core MCU narrative rather than keep them at a distance.
The scene also hints at a closer relationship between Spider-Man and the mutant corner of the Marvel universe. In the comics, the two worlds have intersected often, and placing Jean Grey in Peter Parker’s orbit opens the door for meetings with other members of the X-Men in future installments.
As discussion ofSpider-Man: Brand New Daycontinues, the conversation keeps returning to the same conclusion: the MCU’s next chapter will be shaped by the arrival of the X-Men. WithAvengers: Doomsdayapproaching, the post-credits scene appears designed to connect Spider-Man’s story to that larger event.
The film leaves audiences with a clear sense of direction. The X-Men are coming, and Jean Grey is one of the first through the door.



