Sadie Sink’s Pivotal Role In ‘Spider Man: Brand New Day,’ Explained Sadie Sink, known for her breakout role in Netflix's Stranger Things, takes on the iconic X Men character Jean Grey in Spider Man: Brand New Day.
This development marks a significant milestone in the gradual integration of X Men characters into the Marvel Cinematic Universe (MCU).
The inclusion of Jean Grey is part of a larger strategy to merge the X Men universe with that of Spider Man and other characters.