Sadie Sink is best known for her role as Max Mayfield on Stranger Things, yet her acting journey began at age seven. She first gained recognition on Broadway before transitioning to television and film, ultimately becoming one of the most recognizable young actresses of her generation. After nearly a decade portraying Max, Sink is entering a new chapter by joining the Marvel Cinematic Universe in Spider-Man: Brand New Day. While Marvel has not officially revealed her character, speculation has grown that she could be playing Jean Grey. Sink described the experience as surreal, noting that she grew up watching Marvel films. She stated that being part of the franchise feels incredibly meaningful. Sink praised the character as amazing and expressed excitement about finally bringing her to life.