From the moment Stranger Things season one debuted on Netflix, the sci-fi series was a hit amongst viewers. The show went on to have four seasons—with a fifth and final season confirmed by The Duffer Brothers—but one of the show’s stars didn’t think it wouldn’t make it past season one.

While appearing on BBC’s The One Show, actor David Harbour recalled the moment he thought the Netflix series wouldn’t get renewed for a second season. “I remember when we were shooting the first season. We were down in Atlanta, Netflix had given us a budget of about $20,” he said, according to the AV Club.

David Harbour Stranger Things Season Three CAT
Netflix

“Halfway through I remember my hair person coming up to me, like about episode four we were shooting, and she was like, ‘I don't think it's gonna work,’” he continued, “By the time we finished, we wrapped, I thought we wouldn't get a second season, we’d be the first Netflix show kind of ever to never get a second season.”

Looks like Harbour was wrong. Not only will the actor reprise his role as Jim Hopper in the final installment, but the sci-fi series recently became the streaming service’s most popular show of all time. Better yet, the Stranger Things universe will continue to expand because a spin-off series is already in the works.

Stranger Things Leads CAT
Netflix

Speaking of the spin-off series, the Duffer Brothers have remained pretty tight-lipped on the project. But they did confirm one major detail: the series won’t focus on the OG show’s characters. The creators recently appeared on Josh Horowitz’s Happy Sad Confused and shared the project will be “1000% different” from the original.

“I’ve read these rumors that there's gonna be an Eleven spin-off, that there’s gonna be a Steve and Dustin spin-off, or that it's another number,” Matt said. “That’s not interesting to me because we’ve done all that. We’ve spent I don't know how many hours exploring all of that. So it’s very different.”

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