(L-R) Sadie Sink, and Tom Holland in ‘Spider-Man: No Way Home’Getty Images; Everett Collection

EXCLUSIVE: With production set to start later this year on the next installment in the Spider-Man franchise, series star Tom Holland looks to have found a new co-star — one who is no “stranger” to popular IP. Sources tell Deadline that Stranger Things star Sadie Sink is set to join the sequel from Sony Pictures and Marvel Studios. Holland is already set to return as Peter Parker.

Marvel and Sony had no comment.

Destin Daniel Cretton is directing, with Amy Pascal and Marvel president Kevin Feige producing.

As for who Sink will be playing, the prevailing theory is she’ll be introduced as X-Men character Jean Grey, but don’t count out the idea that she shows up as another beloved redheaded Spider-Man character. What is known is that the role will be a significant one given how the most recent film, Spider-Man: No Way Home, concluded with Parker making the decision to complete Doctor Strange’s spell that erases his identity from the world.

By staying on track with that plotline, one can expect Holland’s old castmates to have reduced roles while newcomers are added to the ensemble, with Sink being the first major new role.

Holland is currently filming the Christopher Nolan’s The Odyssey and the plan is for him to start shooting Spider-Man once he has wrapped production on Nolan’s pic.

For Sink, the role comes on the heels of her saying goodbye to the part that helped launch her career as the final season of her the Netflix series Stranger Things recently wrapped production. The final season is one of the more anticipated premieres of 2025 and will air later this year.

Sink can be seen next in the Searchlight musical O’Dessa, which just had its world premiere at SXSW. Sink earned strong reviews for her performance and the film is set to bow next week on Hulu. Before she starts production on Spider-Man, she will first be seen in the Broadway play John Proctor Is the Villain which opens April 4.

She is repped by WME, Mara Entertainment and Peikoff Mahan.