Although "Stranger Things" is one of Netflix's most popular shows, David Harbour didn't have high hopes for the series in the early days — and he wasn't alone.
During an appearance on The One Show, David admitted to thinking the drama would be a "disaster."

The actor, who plays Chief Jim Hopper in the show, made the reveal after being asked if he suspected "Stranger Things" would be a hit.
"Not at all. I remember when we were shooting the first season down in Atlanta, Netflix had given us a budget of about $20," he said. "Halfway through I remember my hair person coming up to me, about episode four we were shooting, and she was like 'I don't think it's gonna work.'"
David recalls being surprised by the crew member's admission, but he also somewhat agreed with it.
"By the time we wrapped up filming I thought we wouldn't get a second season," he said. "We'd be the first Netflix show ever to never get a second season. We thought no one would watch it and it was gonna be a disaster."

"Stranger Things" is far from a disaster and has been one of the streaming service's tentpole shows.
Not only has the show made legitimate stars of David and Millie Bobby Brown, it also thrust Kate Bush's 1985 hit "Running Up That Hill" back into the charts, as the song was prominently featured in a Season 4 episode.
Referencing the song's reemergence 37 years after it was released, one of The One Show hosts joked, "I mean nobody's more surprised [by the show's success] than Kate Bush to be fair."
"You're welcome, Kate!," David laughed.