When you work on a show like Stranger Things where secrecy is key, you’ve got to be very careful what you say.
“I’m definitely the worst,” Levy admitted, though he did call out one other cast member as a secret spoiler operative.
Charlie Heaton also picked Harbour as their biggest leaker, but newcomer Sadie Sink picked someone we never would have guessed: executive producer Shawn Levy.
“David Harbour is the worst at spilling things,” Millie Bobby Brown revealed without hesitation.