“I’ve never seen that in a child actor.” It’s almost a mantra for anyone who’s worked with Millie Bobby Brown.

Whether it’s “Stranger Things” executive producer Matt Duffer praising her on-set technical knowledge, co-star David Harbour extolling her emotional intelligence or casting director Sarah Finn explaining why she selected her for the next installment in the “Godzilla” film franchise — even the most seasoned industry pro marvels at the young actor’s preternatural ability.

Brown, now just 13, has never been trained professionally as an actor, never gone to acting school, and never taken a class. She simply decided at age 8 she wanted to be on-screen, and her parents obliged, moving her and her siblings from Bournemouth in England to Orlando, Florida, to allow her to pursue her dream.

“It was like a bug,” she says. “I know this sounds crazy, but once I find something I want to do, nobody’s stopping me. So here I am.”

Her path to stardom wasn’t immediate: She secured a few guest star spots here and there, in shows like “Once Upon a Time in Wonderland,” “Modern Family” and “Grey’s Anatomy.” She got turned down for “Logan,” which eventually went to Dafne Keen. But it was the role of Eleven in Netflix’s sleeper hit that catapulted her to fame.

“I felt at one point I couldn’t do it [anymore], but then I got this and everything changed. Acting is like breathing to me,” she said in an interview with The Hollywood Reporter.

To say the past year of her life has been a roller coaster would imply that there have been dips. In fact, it’s been nothing but a steady climb since the July 2016 bow of “Stranger Things.” Her Instagram followers ballooned from 25 to 4.2 million; the cast won best ensemble at the SAG Awards and best drama at the PGA Awards; and she claimed her own trophy at the MTV Movie & TV Awards for best actor in a TV show, with an emotional acceptance speech that won her even more accolades for its honesty. And with season two of “Stranger Things” now streaming (it debuted on October 27), she just wrapped production on the next installment of the “Godzilla” franchise opposite Kyle Chandler, Vera Farmiga and Thomas Middleditch.

Then there’s that Emmy nomination for supporting actress in a drama. “It was a true honor and privilege to be representing the young generation,” she says. Although she went home on Emmy night empty-handed, she took things in stride, happy to simply enjoy the evening out with her merry band of co-stars.

Brown is trying to hold on to some vestiges of her childhood and not rush headlong into adulthood, despite all the magazine cover offers coming her way. “I don’t like showing off my skin,” she reveals. “If I’m in a photo shoot and they’re like, ‘Can you wear a crop top?’ I’m like, ‘No. No, not yet.’ When that day comes I’m going to be, like, 18.”

She plans to spend her spare time doing charity work. “I just want to focus on helping other people,” she says. “Working with UNICEF is a really big dream of mine.”

And while she’s content to focus on acting, her other passion is singing — just watch her impressive rap to Nicki Minaj’s verse on “Monster” on YouTube. As with acting, she’s never trained. “It came to me naturally,” she says.

Even more remarkable, Brown is deaf in one ear — she was born with partial loss of hearing, and then her hearing faded away after years of tubes. So she can’t fully hear herself perform, but no matter. “I just started to sing, and if I sound bad I don’t care, because I’m just doing what I love,” she says. “You don’t have to be good at singing. If you like to do it, if you genuinely enjoy doing it, then do it. No one should stop you.”

(SD-Agencies)