Sadie Sink is still not saying who she plays in Spider-Man: Brand New Day. Sony is leaning into that silence with Instagram videos that mock the secrecy and keep the role unresolved for Marvel Studios and the film’s audience.
Instagram Videos Push the Secrecy
One Instagram post showed Sink saying she had seen the theories about her character, then giving three “exclusive confirmed” answers. That clip drew over 770,000 likes, a large enough response to make the secrecy itself part of the promotion rather than a side note.
Another Instagram video used tense orchestral music and a caption about preparing to film a documentary on how she kept her role a secret. That post collected over 301,000 likes, which shows the same joke working in a second format and gives Sony two high-engagement pieces built entirely around the unanswered casting question.
Jean Grey Keeps Circulating
Fans have long theorized that Sink is playing Jean Grey, and fan art of her as Jean Grey has circulated. Jean Grey is a member of the X-Men, which keeps the speculation tied to a character with built-in recognition inside the Marvel Cinematic Universe conversation.
Marvel Studios and Sink have not revealed the identity of her character, so the posts function less like a reveal than a controlled tease. Sony is not closing the gap; it is widening it and turning the delay itself into the content.
March 2025 Casting Still Drives It
Sink was cast in Brand New Day in March 2025, and the secrecy has only sharpened since then. She previously called the situation “torture” because she could not openly discuss her role, a blunt line that fits the current campaign better than any official explanation would.
Tom Holland, described here as an occasional spoiler-dropper, sits in the background of that dynamic even as Sony keeps the spotlight on Sink. The practical read is simple: the studio has found a promotion tactic that does not require a character reveal, but the real answer still matters because the speculation keeps pointing back to Jean Grey and the next round of posts may be the only thing fans get before the film does.
