David Harbour feared his mental health issues were related to his money troubles. And this time, it was Saturday night, and there were 20 people waiting for me, and I was like: 'Whoa'. "They were like: 'We just saw this show [Stranger Things].’ And then Sunday night there were like 50 people waiting for me, and I was like: 'What the hell is going on?' "They’re like: 'Sorry, man, we’re all just Stranger Things fans - we didn’t even see the play, but we heard you were here!'