Musician Steve Lacy appears to have revealed Sadie Sink’s secret role as the villain Jean Grey during the Los Angeles premiere of Spider-Man: Brand New Day on July 27, 2026. The slip-up occurred during a red-carpet interview, seemingly confirming months of fan theories just days before the film’s global release on July 31.
Marvel Studios and Sony Pictures spent months treating Sadie Sink’s casting in Spider-Man: Brand New Day as one of the production’s most guarded secrets. The effort included photographing Sink on set wearing a jacket to conceal her costume and maintaining a strict promotional blackout regarding her character.
That secrecy collapsed on Monday during the Los Angeles premiere. Steve Lacy, whose song oh yeah?
is featured on the film’s soundtrack, was asked by streamer Valkyrae which character he was most excited to see. Despite being asked specifically not to spoil anything, Lacy’s response was immediate.
“You know what? Jean. I like Jean. She’s the villain, but there’s a reason to her madness.”
Steve Lacy, musician, via tribune.com.pk
When the interviewer asked if he had just shared a spoiler, Lacy did not retract the statement, simply adding, I like her. I like her character. I don’t know why
, according to tribune.com.pk.
The Jean Grey Connection and Mutant Saga
While Marvel has not officially confirmed the casting, the internet has widely interpreted Jean
as a reference to the X-Men’s Jean Grey. This reveal is particularly significant because it suggests the MCU may be starting the Mutant Saga from scratch, potentially focusing on younger versions of characters like Jean and Scott.

This development contrasts with previous denials from the cast. However, Holland’s history of spoiling previous films makes his denials a point of contention for fans.
The timing of the reveal coincides with other subtle hints. One social media user pointed out that Ryan Reynolds’ special Deadpool suit featured a fabric color that served as a classy spoiler
for Jean Grey during SDCC.
Fan Reactions and the ‘NDA’ Memes
The viral nature of the clip sparked a wave of humor and conspiracy theories on X and Reddit. Fans joked that Marvel boss Kevin Feige was rewriting the NDA in real-time. Some users expressed disbelief that Sadie Sink was kept under a non-disclosure agreement for a year only for the secret to be leaked by a musician three days before release.

The fallout extended to rumors that Lacy had gone missing
or would find his song removed from the film, though indiatimes.com noted these were largely jokes made in good humor.
Beyond the character identity, some fans noted that Lacy spoiled more than just a name; by calling her the villain, he potentially revealed a major plot twist regarding the film’s antagonist.
Critical Reception and Box Office Projections
Despite the leak, early buzz for the film remains high. Projections indicate that the fourth MCU Spider-Man film is set to earn $800 million in its first few days. This financial optimism is supported by positive early press screenings.
This suggests a strategic overlap between the Spider-Man project and the broader introduction of mutants into the MCU.
Spider-Man: Brand New Day Release Timeline
The film follows the events of Spider-Man: No Way Home, exploring a world where Peter Parker’s identity has been erased.
- India: July 30, 2026
- United States and Other Markets: July 31, 2026
The film’s arrival marks the next chapter of the MCU’s Phase Six. With the primary mystery of Sadie Sink’s role effectively out in the open, the focus now shifts to the official premiere and the subsequent public reaction on July 31.