Actress Sadie Sink has finally revealed details about her role in the blockbuster film “Spider-Man: Brand New Day,” where she portrays Jean Grey in her Marvel Cinematic Universe debut. The star, who gained prominence through her performances in “Stranger Things” and “The Whale,” maintained secrecy about the casting for over a year. During filming in London, her character was referenced only by a code name, and she arrived on set without access to the complete script for security purposes.
The mystery surrounding Sink’s involvement persisted through the film’s promotional campaign, with trailers offering minimal glimpses of her hooded character and her mind-control abilities. Even during interviews and photo calls alongside co-stars Tom Holland and Zendaya, Sink carefully avoided spoiling her casting. However, musician Steve Lacy inadvertently revealed the secret at the film’s Los Angeles premiere when he mentioned Jean as his favorite character during the official red carpet broadcast.
Now that “Brand New Day” has become a theatrical sensation—breaking domestic box office records and earning $1.15 billion globally in its first week—Sink can discuss her experience portraying the iconic mutant character. She approaches Jean as a complex figure rather than a traditional villain, emphasizing the character’s traumatic background and motivations. Sink expressed her enthusiasm about bringing her unique interpretation to life, particularly regarding Jean’s relationship with her sister Sara, which provides crucial context for the character’s actions throughout the film.