By Zack Sharf
Plus IconZack Sharf
Digital News Director
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James McCauley/Variety Sadie Sink is officially entering the Marvel Cinematic Universe at the end of the month playing a mystery role opposite Tom Holland in “Spider-Man: No Way Home.” Her role is so secretive that Sink has not even appeared in any of the movie’s trailers or marketing footage despite the actor being a Gen Z superstar after her years-long run on Netflix’s “Stranger Things.” Internet sleuths are convinced Sink is playing a young Jean Grey ahead of Marvel introducing a younger band of X-Men into the universe, but she’s not letting anything slip.
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