Spider-Man 4's twist about Sadie Sink's MCU character reportedly revealed! The highly anticipated Marvel Studios film, Spider-Man: Brand New Day, has received another rumor regarding Stranger Things star Sadie Sink's mysterious character. The upcoming Tom Holland-led movie is set to debut on July 31, 2026. According to The Beyond Reporter on X, audiences will be led to believe that Sink's character is a random person before it's revealed that her name is actually Jean. This rumored character twist is similar to the MJ reveal at the end of Spider-Man: Homecoming. Before this new rumor, fans speculated that Sink's character might be the MCU's Jean Grey or Rachel Summers. Spider-Man: Brand New Day is directed by Destin Daniel Cretton and features Zendaya and Jacob Batalon returning as MJ and Ned. Mark Ruffalo is also set to reprise his iconic role as Bruce Banner/Hulk. Will audiences be surprised by Sink's character reveal? Let us know your thoughts in the comments!