After wrapping Stranger Things, Sadie Sink is about to enter the Marvel Cinematic Universe with Spider-Man: Brand New Day, and there’s a lot of speculation around her character.

Sink joined the superhero film, but little is known about who she is playing, which has led to many rumors about her character and her red hair.

“A lot of people forget that hair color can change, but yeah, I understand all of the theories,” Sink told Entertainment Weekly about the theories on who she is playing.

Sink remained tight-lipped about her character, adding, “People will just have to wait and see. I’m excited for all of it to maybe be put to rest.”

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One of the rumors that was brought up in the interview was that she would be playing X-Men’s Jean Grey, to which Sink said, “That was happening before I even knew that I would be working on this project. I was like, ‘Wait! What are people talking about?’”

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Sink is also set to reprise her Marvel role in Avengers: Secret Wars, which is set to shoot in London in 2026.

Deadline reported in March that Sink was joining the cast of Spider-Man: Brand New Day in an unconfirmed role. Sink will join Tom Holland as Peter Parker and Zendaya as MJ. Other actors who Sink will also share credits with include Jacob Batalon, Liza Colón-Zayas, Jon Bernthal, Mark Ruffalo, Michael Mando, Tramell Tillman, and Marvin Jones III.