What Sadie Sink’s Jean Grey In ‘Brand New Day’ Reveals About The MCU’s X-Men

Sadie Sink has been confirmed to play Jean Grey in the upcoming film Spider-Man: Brand New Day. The Stranger Things actress will appear in the fourth solo Spider-Man installment, where she is expected to serve as a villain of sorts to Tom Holland's character. This casting choice officially introduces the mutant character into the MCU, providing significant revelations regarding the future integration and presence of the X-Men within the cinematic universe's expanding narrative.