Sadie Sink’s Next Marvel Movie After Spider-Man 4
Sadie Sink has reportedly joined another Marvel film after being cast in Spider-Man: Brand New Day. The report indicates her next Marvel appearance is Avengers: Secret Wars, though Marvel Studios has not confirmed this casting. Sink was previously announced as part of the Spider-Man 4 cast with Tom Holland, Zendaya and Jacob Batalon in March 2025.
A report connects her role in Spider-Man: Brand New Day with a move to the next Avengers film. The announcement surrounding Spider-Man 4 placed her in a major ensemble, and now her next project reportedly links directly to another high-profile Marvel release.
Reports Link Sadie Sink to Avengers: Secret Wars
According to a report by Deadline’s Baz Bamigboye, Sadie Sink is set to join Avengers: Secret Wars after completing work on Spider-Man: Brand New Day. The casting is not confirmed by the Stranger Things actress or Marvel Studios.
The report states, “Spider-Man: Brand New Day is scheduled to open on July 31. There has been much speculation about the role Sink has in the Spidey film, and frankly, I do not know the answer, but I do know that she’ll join the cast of the next Avengers picture that shoots here in London later in 2026.”
Secret Wars is going to start filming in summer 2026, according to The Hollywood Reporter. Many Marvel fans have speculated that the Avengers film referred to in the report is Secret Wars.
Ongoing Spider-Man: Brand New Day Filming
Sink is currently busy with Spider-Man: Brand New Day and will reportedly be shooting “until the middle of December.” Details regarding Sink’s role in the upcoming Spider-Man movie remain under wraps.
Rumors have circulated based on set photos. Speculation suggests Sink might be playing Jean Grey or Mayday Parker. Other rumors suggest she may have been cast as Gwen Stacy or Rachel Cole, the female partner of Jon Bernthal’s Punisher.
Spider-Man: Brand New Day is scheduled to arrive in cinemas on July 31, 2026.
