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- Sadie Sink ‘Spider-Man’ Role Explained: Her ‘Brand New Day’ Character (hollywoodlife.com)
Spider-Man’s “Brand New Day” Casting Shocker: Sadie Sink Found Out Like the Rest of Us!
Since wrapping up her role in the hit series Stranger Things, actress Sadie Sink has been in high demand, and the rumor mill has been churning with speculation about her next big role. Marvel Cinematic Universe (MCU) fans are buzzing with theories, convinced they’ve pinpointed her character in the upcoming Spider-Man: Brand New Day. While both Sink and Marvel Studios have remained tight-lipped, whispers of her potential casting have pointed to a surprising connection to the MCU’s X-Men.
In a January 2026 interview with Jimmy Fallon, Sink admitted that keeping the details of her role under wraps has been “torture.” Adding even more intrigue to the situation, the actress revealed that she actually learned about her potential casting in Brand New Day through online fan theories.
“I found out through online theories. Like, before I got cast in Spider-Man, like, there was speculation online that said, ‘Sadie Sink is going to be in the new Spider-Man.’
I was like, ‘Hmm? I am?'”
the Whale star recounted. She then added, “And sure enough, two days later, they asked me to do it.
So yeah, those theories, there’s sometimes some truth to it.”
Regarding the specific character she’ll be portraying, Sink acknowledged the “so much speculation” surrounding it, playfully adding, “I feel like there’s a new character every week,” in reference to the ever-evolving fan theories.
What Is Sadie Sink’s Role in Spider-Man: Brand New Day?
While neither Sadie Sink nor Marvel has confirmed the reports, it has been widely speculated that Sink could be stepping into the iconic role of Jean Grey in Spider-Man: Brand New Day.
Further fueling the X-Men connection, Mark Ruffalo’s Bruce Banner, also known as The Hulk, is set to appear in the 2026 film as Dr. Banner.
In the trailer, Peter Parker approaches Dr. Banner with a question about DNA mutations, to which Bruce responds, “If DNA is mutating, could it be enormously dangerous?”
Who Is Jean Grey in Spider-Man?
The character of Jean Grey is a well-known mutant in the Marvel universe. Interestingly, the Brand New Day trailer hints that Tom Holland’s Peter Parker’s own Spidey senses may undergo a mutation. Fans are already convinced they caught a fleeting glimpse of Sink in the teaser, though the character appears with their back to the camera, keeping the mystery alive for now.
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- Sadie Sink ‘Spider-Man’ Role Explained: Her ‘Brand New Day’ Character (hollywoodlife.com)