Who Is Sadie Sink Playing in 'Brand New Day'? Every Rumour and Hint to Her Spider-Man Character Explained

Published 06/09/2026, 9:33 AM EDT

via Imago

The internet is currently flooded with passionate online theories about a leak involving the Bag Clip toy, suggesting that Sadie Sink is playing the legendary mutant Jean Grey in Spider-Man: Brand New Day. The highly anticipated sequel features Tom Holland as Peter Parker, who lives isolated in a small apartment while dealing with a mysterious physical transformation. Additionally, Zendaya returns as MJ despite her memories being wiped, though reports suggest a smaller role to ensure her safety.

Fans are dissecting a massive wave of leaked product merchandise that seemingly uncovers the secret identity of the major new antagonist.

The blind bag leak reveals Sadie Sink’s identity as Jean Grey in Spider-Man: Brand New Day

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The viral speculation stems from an alleged blind-bag collectible bag clip that depicts the mysterious character. The miniature figure matches the exact aesthetic features seen in recent photos. Specifically, distinctive pink energy is clearly visible emanating from the head, hands, and eyes of the model figure found in blind bags, which is now on sale with mystery figures to promote Spider-Man: Brand New Day.

This visual layout of the bag clip has led multiple fan communities to conclude that the character is indeed Jean Grey. The leaked blind bag toy directly mirrors Sadie Sink’s appearance in the leaked set photos, featuring the same olive-green winter coat layered over a distinct tan, zip-up hooded sweatshirt. Both the miniature figure and the actress share long, auburn hair, similarly framed by the jacket's hood.

This precise alignment in wardrobe elements of the merchandise and Sadie Sink has led fans to believe the merchandise strongly reinforces the legitimacy of the character leak. Marvel lore suggests the mystery antagonist will utilize complex mind control abilities against the main hero. The legitimacy of the leaked toy remains entirely unverified by official studio sources at this time.

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Should this rumored character design prove accurate, it would mark the cinematic adaptation of a legendary figure with decades of rich power.

The extensive comic book history and evolutions of Jean Grey

In Marvel Comics, Jean Grey is an omega-level mutant who serves as the emotional heart and dangerous weapon of the X-Men. Created by Stan Lee and Jack Kirby, the female protagonist first debuted in The X-Men in 1963 under the original code name Marvel Girl. The character possesses some of the most formidable abilities in comic history.

The baseline power grid includes advanced telepathy, allowing the mutant to read minds, cast illusions, and manipulate memories. Furthermore, exceptional telekinetic abilities enable the character to manipulate physical matter mentally and project resilient psionic shields. When bonded with the cosmic phoenix force, these traits scale to god-like, universal proportions.

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The classic appearances consistently describe the heroine with long, vibrant red hair and deep green eyes. The original 1963 uniform consisted of a heavy yellow and blue tunic paired with a yellow face mask. This design eventually evolved into a green minidress before transitioning into the iconic green-and-red phoenix bodysuit.

The unverified blind-bag merchandise leak has sparked immense global excitement about the debut of Jean Grey, a character poised to reshape the cinematic universe when Spider-Man: Brand New Day officially premieres in theatres on July 31, 2026, after being delayed from the previously decided date.

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What do you think about the role Sadie Sink is going to play in Spider-Man: Brand New Day? Let us know in the comments.

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Soma Mitra

1405 articles

Soma is a journalist at Netflix Junkie. With a postgraduate degree in Mass Communication, she brings production experience from documentary films like Chandua: Stories on Fabric. Covering the true crime and docu-drama beat, she turns psychological thrillers into sharp, audience-aware storytelling.

Edited By: Aliza Siddiqui

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