Sadie Sink Cast as Jean Grey in Spider-Man: Brand New Day

The long-rumored casting of Sadie Sink as the iconic X-Men telepath Jean Grey has been confirmed with the theatrical release of "Spider-Man: Brand New Day." The film, which opened in theaters on July 31, 2026, introduces a powerful and reimagined version of the character into the primary Marvel Cinematic Universe timeline, marking a pivotal step in establishing mutants within the franchise.

In the film, Sink's Jean Grey is not a seasoned hero but a young woman grappling with immense power and profound trauma. The narrative reveals that she and her older sister, Sara Grey, played by Olivia Booth-Ford, both manifested telepathic abilities as children, after which their mother abandoned them. The sisters were later separated when agents from the government's Department of Damage Control abducted Sara. Jean, operating in secrecy, spends much of the film using her powers to possess people within a 33-foot radius as she searches for her sister, ultimately confronting Damage Control director Bill Metzger, portrayed by Tramell Tillman.

The film's climax reveals that Sara was killed during Damage Control's experiments, a tragedy that triggers Jean's full Omegalevel potential, unleashing...