Sadie Sink’s Role in Spider-Man: Brand New Day Explained — and Why It’s a Big Deal for the MCU

In the lead-up to Spider-Man: Brand New Day, the core plot of the movie was kept under wraps, with no details revealed about what kind of supervillain Peter Parker (Tom Holland) would be facing in his fourth stand-alone adventure. The trailers also kept things vague, focusing on Spider-Man sparring with supposed allies like the Hulk and Punisher instead of anyone from his wide-ranging rogues gallery. With Sadie Sink (Stranger Things) a confirmed member of the cast but playing an unspecified role, speculation naturally leaned towards her being cast as a new and significant character for the MCU… And that’s exactly what happened. [Editor’s note: The following contains spoilers for Spider-Man: Brand New Day.] Buy the Spider-Man Movies on Blu-ray via Amazon As many, many people have predicted: Yep, Sadie Sink is the new Jean Grey, one of Professor X’s original X-Men. (The red hair did kinda suggest it.) She’s the third actress to play Jean in a live-action movie, following Famke Janssen and Sophie Turner, and this presumably makes Sink the first confirmed cast member for director Jake Schreier’s upcoming stand-alone movie. It takes a while for the character to reveal herself fully in B...