Sadie Sink Joins the Marvel Universe: What to Expect from Her Role as Jean Grey

Sadie Sink, renowned for her role in 'Stranger Things,' is making her debut in the Marvel Cinematic Universe as Jean Grey in 'Spider-Man: Brand New Day.' In an interview, she shares her excitement and the challenges of portraying such an iconic character. Despite her initial unfamiliarity with Jean, Sink is eager to bring depth to the role, focusing on Jean's complex relationships. As the film surpasses USD 1 billion at the box office, fans are keen to see her alongside a new ensemble of mutants. Read on to learn more about her journey into the superhero realm.

By Narendra Chaudhary Aug 9, 2026, 14:35 IST

Sadie Sink's Exciting New Role in the Marvel Cinematic Universe

Sadie Sink, who gained fame from her role in the popular series 'Stranger Things,' is poised to enter the Marvel Cinematic Universe (MCU) with her portrayal of Jean Grey in the upcoming 'X-Men' film. This marks a pivotal moment in her career, as she joins co-stars Kit Connor and Samara Weaving in 'Spider-Man: Brand New Day.' In a recent interview, Sink expressed her thrill about stepping into such a legendary character and the challenges that accompany it.

During her chat with Variety, Sink shared her excitement about embodying Jean Grey, exclaiming, "Honestly, it was amazing!" She recounted a funny moment when musician Steve Lacy accidentally disclosed her character's identity just before the film's premiere, despite efforts to keep it secret. "I was like, ‘Ah!’ He kind of set me free in a lot of ways. And I’m such a big fan of his,” she remarked, emphasizing the surprising nature of the reveal.

Sink also discussed her initial lack of knowledge about Jean Grey before her casting. "Honestly, I knew nothing about her," she confessed, acknowledging that rumors about her playing the role had been circulating online for years. Although she hadn’t watched the previous 'X-Men' films, she became intrigued after a conversation with Marvel Studios President Kevin Feige, who highlighted the character's importance in 'Spider-Man.' "I was like, ‘Oh yeah, this is a no-brainer!’” she remembered, eager to bring her unique take on Jean to the screen.

As she prepares for her role, Sink stressed the significance of crafting a detailed backstory for Jean Grey, particularly focusing on her dynamic with her sister. "She’s very flawed. You’re meeting her at a strange point, because I don’t think she is someone who wants to harm, but she herself has been harmed," she elaborated. This complexity is something Sink is passionate about, aiming to authentically portray Jean's multifaceted nature.

While the film has already made waves at the box office, exceeding USD 1 billion, specifics about the forthcoming 'X-Men' project remain largely undisclosed. Sink's venture into the superhero genre began while she was still involved with 'Stranger Things,' with the Duffer Brothers being among her earliest supporters in this new chapter. As she takes on the role of Jean Grey, fans are eagerly anticipating her performance alongside a fresh cast of mutants.