Marvel’s next movie, Spider-Man: Brand New Day, is one of the most highly anticipated films from the studio in a while. The first trilogy was woven through the events of Avengers: Infinity War and Endgame, with life-changing circumstances that have landed Peter Parker in a very dark place, and fans are anxious to get back to him. There has been a ton of speculation about where we will find Peter (Tom Holland) in this new movie, as well as who Stranger Things actor Sadie Sink will be playing, as her casting has remained shrouded in mystery.This week has been full of rumors and leaks, and after hearing that the Spider-Man 4 trailer has been leaked online, a new rumor claims to reveal who Sink will be playing. CBM reports that in the leaked footage, Sink’s character can be heard saying, “You’re a mess, Spider-Man. Don’t get in my way. Otherwise, it won’t just be your friends who don’t remember who Peter Parker is.” This confirms that she somehow knows who Peter Parker is, even after Doctor Strange’s spell. The Cosmic Circus’s Alex Perez has since taken to social media to explain that the Department of Damage Control is after Sink’s character because they incorrectly believe she’s a mutant. So, this seemingly confirms that Sink is not playing Jean Grey, the character it looked like she might be taking on. And now, speculation is pointing to the character Shathra.After sharing a post with a fan theorizing that Sink’s character is a cosmic entity, Perez strongly hinted at that being the case, explaining, “DODC has been slowly building itself up to become the anti-Mutant task force in the Mutant Saga. It’s why they’ve been after people like Kamala, Peter, Jennifer and Simon. They’re anti-superpowers basically.”In the comics, Shathra is a Wasp-Goddess and totemic predator. She first encountered Spider-Man when he travelled to the Astral Plane, and followed him back to Earth-616. Able to deduce his identity, she posed as Sharon Keller to destroy his life as Peter Parker before hunting Spider-Man as Shathra in a bid to capture and feed him to her offspring. In recent years, she’s been established as a Multiversal threat, perhaps explaining why Sink is confirmed to return in Avengers: Secret Wars. Shang-Chi and the Legend of the Ten Rings helmer Destin Daniel Cretton directs Spider-Man: Brand New Day from a script by returning Spider-Man franchise writers Chris McKenna and Erik Sommers.Tom Holland plays Spider-Man in a cast that also includes Jon Bernthal (The Punisher), Mark Ruffalo (The Hulk), Zendaya (MJ), Sadie Sink, Michael Mando (The Scorpion), Tramell Tillman, Marvin Jones III (Tombstone), Jacob Batalon (Ned Leeds), and Liza Colón-Zayas. Avengers: Doomsday star Florence Pugh is expected to reprise her Thunderbolts* role as Yelena Belova.Spider-Man: Brand New Day will be released in theaters on July 31, 2026.