For Sadie Sink, the end of ‘Stranger Things’ doesn’t feel like a full stop; it feels like a turning of the page. After almost a decade of Hawkins, the Upside Down, and the emotional journey of Max Mayfield, Sink is entering a new blockbuster universe at the exact moment that her most formative role is ending.
Her role in ‘Spider-Man: Brand New Day’ is not just another high-profile job. It is a symbol of growth, contemplation, and an oddly idealized sense of symmetry in her career. Instead of positioning the role as a big Marvel debut in itself, Sink has explained the experience in highly personal terms.
Sadie Sink Is Joining The Spider-Man Universe She Once Watched As A Fan

At the time of the release of ‘Stranger Things’ in 2016, Sadie Sink was still very young in her career. When she came to the series in season 2, she was entering a world that was already a favorite of hers. It was that experience that informed her about franchise storytelling, fandom, and responsibility in a manner that few young actors ever have the opportunity to do. Today, almost a decade later, Sink is in a very similar situation.
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She learned she’d been cast in ‘Spider-Man: Brand New Day’ while still filming the final episodes of ‘Stranger Things’ season 5, a moment she’s described as surreal. “It was crazy. I found out while we were wrapping up season 5 [of Stranger Things]. Spider-Man has always been my favorite. I love Spider-Man. I love Tom’s Spider-Man, especially. To be a fan of something and then join it is a familiar feeling for me, because I was a fan of Stranger Things before I joined the show,” she told THR.
She was emotionally leaving one world and being silently initiated into another. However, for Sink, that overlap was not oppressive but stabilizing. Spider-Man has been her favorite superhero since she was a child. Sink has already gone through the process of being a fan who is integrated into the narrative, and she understands how significant, as well as frightening, that process can be.
Sadie Sink Calls Her ‘Spider-Man: Brand New Day’ Role A “Full Circle Moment”

One of the most meaningful aspects of Sink’s casting has nothing to do with Marvel at all; it has to do with people. The director of ‘Spider-Man: Brand New Day’ is Destin Daniel Cretton, with whom Sink collaborated several years ago on ‘The Glass Castle’, one of her first film roles at the age of 14. “I also worked with the director, Dustin Daniel Kretten, in one of the first movies I ever did when I was 14, so it’s kind of a full-circle moment. I had an amazing time working on that film. Just can’t wait to talk about it more,” she explained.
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Such a reunion gives the project an emotional dimension. Going back to work with a director who remembered her pre-global fame, pre-massive franchises, pre-Max Mayfield is iconic. And that sort of continuity is hard to come by. There is also a silent assurance in the way Sink speaks about secrecy. “There’s so much I want to share. That’s why I feel like keeping Stranger Things secrets is kind of easy because I have so many Spider-Man secrets I’m sitting on that feel even more secretive.”
Keeping secrets is no longer foreign to her; it is an art that she has perfected. That restraint is a measure of her growth. Sink is not pursuing attention or speculation. She knows how important anticipation is and how effective it is to leave a story to its own devices. It is an attitude that makes her a perfect addition to the closely-kept universe of Marvel. As ‘Stranger Things’ prepares to conclude on December 31, 2025, there’s an unmistakable sense that Sink’s timing is perfect. She isn’t leaving one universe behind because it’s over; she’s leaving because she’s ready.



