At a Glance · AI-generated

Sadie Sink's casting in "Spider-Man: Brand New Day" was revealed July 30-31 to include a surprise appearance as Jean Grey, marking her MCU debut and the studio's first official X-Men casting. The revelation, initially kept under wraps, generated significant discussion about how the character introduction sets up Marvel's next reboot and future X-Men projects. Sink later discussed the unexpected nature of her role and hinted at the mutant character's potential storyline within the expanding MCU.