Sadie Sink wasn't allowed to listen to pop music as a child

She told ELLE Australia: "We weren't really allowed to listen to a lot of pop music, but our loophole was musical theatre songs."

Instead, she and her siblings turned to the likes of The Sound of Music and Hairspray, and Sadie secretly watched Grease even though her parents didn't approve.

The 23-year-old actress - whose most iconic scene from Stranger Things was set to Kate Bush's classic Running Up That Hill - and her brother Mitchell used to perform renditions of songs from High School Musical as kids, which led to her mother and father signing them up for acting, singing and dance classes.

She recalled: "It became this outlet of expression for the two of us that was different from the sports we were raised on.

"It gradually built over the years until you couldn't get me back into softball."

When she was just 10 years old, Sadie landed a role in the 2012 Broadway revival of Annie, and four years later she secured her first film role in Chuck.

Cast in a Broadway revival of Annie in 2012, when Sadie was 10, mainly theatre experience before landing role in Chuck at 14.

She said: "The training I had done at that point was just for theatre; I'd never taken a class on acting for the screen.

"So the terms they were using, like when they'd say 'Rolling!' I was like, 'What does that mean?'

"Everything was just so foreign, and nobody explained it to me so I just had to pretend like I knew what I was doing."

Despite that "limited experience", she fully embraced the opportunities coming her way, especially when Stranger Things became an option.

She added: "I had very limited experience in film, but then Stranger Things came along and it just felt right.

"It was the biggest thing I'd ever auditioned for but I just had this feeling like, 'This is going to happen.' "