The Duffers hauled Finn away to their version of the principal’s office—we assume it looks a lot like the Upside Down—to question their young actor.
“They pulled me off and they were like, ‘That is the idea. Who told you?,'” Finn revealed. “I was like, ‘No one.’ They were like, ‘What do you mean, you just came up with it?’ I was like, ‘Well, no, I just thought that that would be a cool way to kind of expand.'”
Ultimately, the Duffers couldn’t help but be impressed with his creative simpatico, stressing to him, “Well, don’t tell anyone!”
While the spinoff details remain, quite obviously, under strict lock and key, the Duffers have dropped some minor hints along the way. For one thing, it won’t be about any existing characters from the Stranger Things universe.
“That’s not interesting to me because we’ve done all that,” the Duffer Brothers said on the Happy Sad Confused podcast last July. “We’ve spent I don’t know how many hours exploring all of that. So it’s very different.”