Marvel Studios/Netflix

Sadie Sink will reportedly star in 'Avengers: Secret Wars'

Originally posted on Nerdist | By Tai Gooden | Last updated Nov 18, 2025 10:22 AM ET

There’s a ton of speculation around Sadie Sink in more than one universe. First, fans really want to know what’s going on with Max in Stranger Things. Will she come out of that coma and make a full recovery? Or will she ultimately lose her life in the fight against Vecna? Upside Down things aside, fans are also very curious about her top secret role in Spider-Man: Brand New Day. Many are speculating that she’s Jean Grey, Shathra, or perhaps an original character altogether. Now, that fancasting will surely hit a fever pitch because Sadie Sink will reportedly star in Avengers: Secret Wars.

This alleged casting was mentioned during a recent Deadline profile about Sink’s rising career as she makes her West End debut in Romeo & Juliet opposite Noah Jupe. The piece states that Sink will reportedly begin filming an Avengers project in 2026. That would certainly align with Secret Wars, which is due to hit theaters in 2027.

For now, there’s no indication that Sink’s character will be in 2026’s Avengers: Doomsday. And, we also don’t have any official casting confirmations from Marvel Studios in regards to Sadie Sink being in Avengers: Secret Wars. So we will have to see if Deadline actually gave fans the first scoop on this news or not. Even if it is true, we still don’t know who she’s playing nor how vital that character will be to any of the ongoing storylines. It seems that with her rising star that she’d be more than a small side character. But a Marvel check is a Marvel check, so let’s see what happens.

This article first appeared on Nerdist and was syndicated with permission.

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