Sadie Sink Addresses Marvel Casting Rumors: Spider-Man & Avengers Secret Wars Role Explained!

Sadie Sink has officially entered the Marvel Cinematic Universe, joining Tom Holland and Zendaya in Spider-Man: Brand New Day. Fans have been buzzing with theories — could she be playing Jean Grey, Mary Jane Watson, or a new character altogether? In this video, we break down everything Sadie Sink revealed about her mysterious Marvel role, the rumors surrounding her character’s hair color, and how she fits into the upcoming Avengers: Secret Wars. Hear what she told Entertainment Weekly about the wild fan theories and what this means for the MCU’s future. Stay tuned for more news on Spider-Man: Brand New Day, Avengers: Secret Wars, and all things Marvel!