Sadie Sink is spilling the tea on her secret Spider-Man: Brand New Day role! The Stranger Things star appeared in a new clip where she confirmed three things about her character in jest. "As for who I really am… You’ll have to find out in the theater," Sadie concluded. Sadly, Sadie‘s actual character remains a total mystery, however one of the biggest theories circulating online is that Sadie is playing one of the X-Men. I guess we'll have to wait until the 31st of July to find out.