Sadie Sink is set to appear in Spider-Man: Brand New Day in a mystery role alongside Tom Holland, according to multiple outlets. Deadline reports that Sink describes her experience working with Holland as relaxed and open, and notes that stepping into the production involved her playing an “outsider” in the context of the film’s environment. Variety adds that the secrecy around Sink’s part extends to the casting process and early access to materials: Sink reportedly did not have an audition and did not see the script until she traveled to London. Variety also states her role has not been included in trailers or marketing footage. ComingSoon.net similarly reports that Sink did not audition for the MCU role and that she will appear with Holland and Zendaya in the upcoming release. Across the coverage, the central points are that Sink is joining the Spider-Man franchise, her character remains tightly concealed in marketing, and her involvement in the project is described as unusually confidential, including limited script access until she arrived on set in London.