Millie Bobby Brown is world-famous, but her real name has been a secret — until now.
The “Stranger Things” star sat down Thursday with HuffPost’s parent company BuzzFeed to promote her upcoming film “The Electric State,” but in an unexpected digression, she revealed to co-star Chris Pratt and millions of viewers that Millie Bobby Brown isn’t her actual name.
“My middle name is Bonnie,” she told Pratt, who then asked, “Is it Millie Bobby Bonnie Brown?”
When Brown confirmed there’s “no Bobby” to speak of and that her complete legal name is Millie Bonnie Brown, her befuddled co-star couldn’t help but ask, “Really?”
The he continued, “Your middle name is Bonnie, but you just changed it to Bobby for…”
“Shits and giggles,” Brown responded before quite literally giggling about it.
Brown seemed to relish divulging she had a stage name, which many performers in the entertainment industry admittedly use. Pratt’s own father-in-law, Arnold Schwarzenegger, initially went by “Arnold Strong” in his early days as an actor.
“I’ve never told anyone that,” Brown told Pratt about the name on her birth certificate.
The revelation comes a little less than a year after Brown married Jake Bongiovi, the son of rock star Jon Bon Jovi, in a private ceremony in May. The couple started publicly dating in 2021 and have since bought a farm in Georgia that serves as their part-time home.
The native Briton shared candid details earlier this year about her newfound gig as a rancher in the U.S., but also opened up about the pitfalls of child stardom — and revealed she doesn’t “have many friends” as a result of making it big when she was 11.

“I didn’t go to school, so I don’t have the best social skills when it comes to people my own age and friendships,” she told Vanity Fair last month. “I struggle with that quite a bit. I missed out on a few things. But I’m working through them.”
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Thursday’s revelation was arguably just as intimate, as names can give people an inherent sense of self, and while Brown jokingly announced in a cheeky voice that viewers “heard it here first,” she may have paid tribute to her father in using the middle name “Bobby.”
Her dad, whom she previously described as one of her “best friends,” is named Robert.