Sadie Sink stars as Jean Grey in Spider-Man: Brand New Day. Marvel Studios and Sony Pictures kept her role under wraps during production, but the character serves as a central antagonist before the film’s record-breaking global box office run.
For more than a year, Sadie Sink carried a secret that the Marvel faithful had largely figured out long before tickets went on sale. Offered the part following breakout performances in Stranger Things and The Whale, the actress arrived on the London set of Spider-Man: Brand New Day without ever reading a full script, according to Variety. For security during production, her character answered to a code name, and early marketing trailers revealed little more than a hooded figure possessing the ability to infiltrate minds and freeze entire crowds.
How the Secret Unraveled on the Red Carpet
While Sink managed to dodge probing questions during promotional events alongside co-stars Tom Holland and Zendaya, the secret finally dissolved at the film’s Los Angeles world premiere. R&B singer Steve Lacy, who contributed a track to the official soundtrack, casually revealed her character during an official red carpet live stream.
“She’s the villain but, like, there’s a reason to her madness.”
Steve Lacy, R&B artist, via Variety
The slip freed Sink from months of media circumvention. I was like,
, Sink told Variety regarding the moment. Before the premiere, she had only confided in a select few, including her Stranger Things bosses, Matt and Ross Duffer.Ah!
He kind of set me free in a lot of ways
Marvel Studios and Sony Pictures Chase Record Box Office
The secrecy surrounding the production mirrored Marvel’s approach to past blockbusters.
That strategy did nothing to stunt the film’s commercial momentum. Spider-Man: Brand New Day shattered domestic expectations by opening to $360 million in North America—surpassing Avengers: Endgame as the biggest domestic debut in box office history—while pulling in $932 million worldwide during its opening week, as detailed by Deadline. By its first Monday, the global tally approached the $1 billion threshold.
Rewriting Jean Grey for the Marvel Cinematic Universe
Rather than introducing Jean Grey as a foundational member of the X-Men, Spider-Man: Brand New Day positions her as a catalyst for the upcoming Mutant Saga. In this iteration, Jean grows up alongside her mutant sister Sara Grey, played by Olivia Booth-Ford. After their terrified mother abandons them, the sisters navigate life on the streets until government agency Damage Control captures Sara.
Directing Peter Parker Through Grief and Isolation
Director Destin Daniel Cretton inherited a Peter Parker still reeling from the events of Spider-Man: No Way Home, isolated without Ned or Zendaya’s character.
What Lies Ahead for the X-Men in the MCU
With the general public largely unaware of mutants prior to Jean’s public display of power, her actions effectively establish the societal fear and prejudice central to the X-Men mythos.