Sadie Sink Reveals Spider-Man Fan Theories Predated Her Casting Offer

Actress Sadie Sink has revealed that online fan theories accurately predicted her casting in the upcoming Spider-Man film just days before she received the official offer. The Stranger Things star discovered the speculation while wrapping the show's final season. Sink, a longtime Spider-Man fan, praised Tom Holland's portrayal and said her experience with Netflix's secrecy prepared her for Marvel. The film, Spider-Man: Brand New Day, is set for release in July 2026.

Key Points: Sadie Sink on Spider-Man Casting and Fan Theories

  • Fan theories predicted casting
  • Learned while wrapping Stranger Things
  • Tom Holland's Spider-Man a favorite
  • Stranger Things prepared her for secrecy
  • Film releases July 2026
3 min read

Sadie Sink says fan theories preceded her 'Spider-Man' casting, says "there's so much speculation"

Stranger Things star Sadie Sink says online rumors she'd join the MCU's Spider-Man came true just days before the official offer.

"I found out through online theories... sure enough, two days later, they asked me to do it. - Sadie Sink"

Washington DC, January 8

Actress Sadie Sink has revealed that online fan theories predicting her involvement in the 'Spider-Man' franchise surfaced just days before she officially received the offer to join the Marvel Cinematic Universe, according to The Hollywood Reporter.

During an appearance on 'The Tonight Show' with Jimmy Fallon, the 'Stranger Things' star said she first came across speculation on the internet claiming she would be part of the next Spider-Man film, Spider-Man: Brand New Day. Sink recalled being surprised by the rumours, only for them to turn out to be accurate when she was approached for the role two days later.

"There's so much speculation, too," she said, adding, "I feel like there's a new character every week" that fans theorize she might be portraying. The Tony Award nominee notably shared that before she got the offer to appear in Spider-Man: Brand New Day, she saw fan theories online that she'd be involved in the project," as quoted by the outlet.

"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,'" she explained. "I was like, 'Hmm? I am?' And sure enough, two days later, they asked me to do it. So yeah, those theories, there's sometimes some truth to it," The Hollywood Reporter quoted.

Sink said joining the Marvel Cinematic Universe felt "crazy," especially as she learned about the casting while wrapping up the fifth and final season of Stranger Things. A longtime Spider-Man fan, she expressed admiration for Holland's portrayal of the superhero and noted that her experience keeping plot details confidential on the Netflix series has helped her manage Marvel's strict secrecy.

"I found out while we were wrapping up season five of Stranger Things. Spider-Man has always been my favourite. I love Spider-Man. I love Tom's Spider-Man, especially," she said, adding that keeping Marvel-related secrets came easily due to her work on Stranger Things, according to The Hollywood Reporter.

'Brand New Day' will see Holland return as Peter Parker, with Zendaya and Jacob Batalon reprising their roles as MJ and Ned. The film also features Mark Ruffalo as Bruce Banner/The Hulk, Michael Mando as Scorpion, and Jon Bernthal as the Punisher. Directed by Destin Daniel Cretton and written by Chris McKenna and Erik Sommers, the film is scheduled for a theatrical release on July 31, 2026.

- ANI

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Reader Comments

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Priya S
Honestly, the Marvel secrecy is next level. Good that she has experience from Stranger Things. As an Indian viewer, I just hope the new Spider-Man film has a good story and isn't just about setting up more movies. The last few felt a bit crowded.
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Rohit P
Fan theories are fun, but sometimes they create too much pressure on the actors and writers. I'm excited to see her in the MCU though! Tom Holland is my favourite Spider-Man too.
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Sarah B
Interesting read. The internet really does know everything first sometimes. I wonder what character she'll be playing? Maybe Gwen Stacy? The cast for this film looks stacked.
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Karthik V
As a huge comic book fan from Mumbai, I'm just happy to see the MCU going strong. But I have a respectful criticism: I wish they would explore more new heroes instead of always returning to Spider-Man. The universe feels a bit small sometimes. Still, will definitely watch!
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Nisha Z
Ha! This proves that fans have a sixth sense. Wishing her all the best for the role. Hope the movie releases in India on the same date. The wait until 2026 is too long, yaar!

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