The ‘Spider-Man: Brand New Day’ Trailer Apparently Leaks, Reveals Sadie Sink

InnovationGamingThe ‘Spider-Man: Brand New Day’ Trailer Apparently Leaks, Reveals Sadie SinkByPaul Tassi,Senior Contributor.Forbes contributors publish independent expert analyses and insights. News and opinion about video games, television, movies and the internet.Follow AuthorDec 16, 2025, 05:58pm ESTSpider-ManDisneyDisney is having a bad 24 hours with first, two different leaks of two different theater-only teasers for Avengers: Doomsday, one of which confirms the return of (spoilers) Chris Evans’ Steven Rogers, the other, a look at Thor. But now the film releasing before that one in 2026, Spider-Man: Brand New Day, appears to have leaked as well, but in a much different context.The social media-circulating video’s recording quality is horrible, but even in this age of AI, it appears to be legitimate, the unfinished Spider-Man: Brand New Day trailer recorded from a private screener site you are absolutely not supposed to record from. The visuals are barely possible to see, but the audio is mostly salvageable. The biggest reveal here is about Sadie Sink’s mystery character, where she now appears to be a villain in the film, or at least a rival to Peter.US actress Sadie Sink attends the world premiere of Netflix's "Stranger Things", Season 5, at the TCL Chinese theatre in Los Angeles on November 6, 2025. (Photo by Frederic J. Brown / AFP) (Photo by FREDERIC J. BROWN/AFP via Getty Images)AFP via Getty ImagesFans have put together as much of the audio as they can, though there are many transcriptions with differing details. Here’s one:Spider-Man: "Hi. My name is Peter Parker. You don't remember me, but we knew each other. Something bad was going to happen, and the only way to stop it... was to make everyone forget about me. I'm not just Peter Parker. I'm... Spider-Man. And sometimes Spider-Man has to do the hard part, even if it breaks Peter Parker's heart."MORE FOR YOUSadie Sink's character: "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."Tombstone (maybe): "Spiders have three life cycles. And between cycles, it can leave the spider vulnerable to threats. Those spiders that survive..."Spider-Man: "Professor Banner, I need your help."Bruce: “You’re not one of my students, are you?”Tombstone (maybe): "...goes through a kind of rebirth."Spider-Man: "Wait, what are you doing here?!"The Punisher: "Saving your ass, can't you see?!"We knew that The Punisher, Tombstone and (probably) Bruce Banner were in the film, but Sadie Sink’s mystery character now being a villain is throwing everyone for a loop. That almost all previous guesses, many hair-based (we don’t see what color hair she has in this):The “real” version of MJ, Mary Jane, not Michelle JonesGwen Stacy, a new Pete love interest (previously played by another famous redhead turned blonde, Emma Stone)Felicia Hardy, aka Black CatRachel Cole-Alves, a Punisher sidekickFirestar, part of the Spider-Man and His Amazing Friends eraJean Grey, a prominent, all-powerful member of the X-MenMayday Parker, who would be Tobey Maguire Spidey’s daughterSpider-Woman, Jessica Drew, frequently in Spidey storylines in addition to her ownIt’s very hard to imagine how any of these would work if Sink is a villain here. Supposedly, she’s such an important character that she may be sticking around for Secret Wars and in projects after. That has always led back to a Jean Grey/X-Men theory, but her being here? Saying this? That would be pretty bizarre for the character.ShathraMarvelA new theory has cropped up in the wake of this leak, the idea that it’s possible Sink is playing Shathra, a “Wasp-Goddess” who has appeared in Spider-Man stories, but her origin is very much cosmic-based when the idea here seemed to be that Spider-Man was going back to be more street level. But…maybe not. Still, all these Sink guesses so far seem 95% wrong, and this one may be no different. And hey, no red hair!Sony has already started copystriking these Spider-Man: Brand New Day trailer uploads, and loads of insiders say that this is in fact real. Now, will we see it released publicly soon? Or are we just going to see more and more increasingly higher-quality leaks, as is the trend lately?Follow me on Twitter, Threads, YouTube, and Instagram.Pick up my sci-fi novels the Herokiller series and The Earthborn Trilogy.Editorial StandardsReprints & PermissionsLOADING VIDEO PLAYER...FORBES’ FEATURED Video