Adam Driver Cast as Villain Mister Sinister in Marvel's X-Men Movie

At the D23 fan event on August 14, 2026, Marvel confirmed Adam Driver will play the villain Mister Sinister in its upcoming X-Men film, set for May 5, 2028. Sadie Sink plays Jean Grey, a character introduced as an antagonist in Spider-Man: Brand New Day. This marks Marvel's first time introducing mutants as villains rather than heroes.