Millie Bobby Brown on Eleven’s Fate in ‘Stranger Things’: ‘Believe!’

The "Enola Holmes" star is keeping Eleven's fate under wraps — and she's not alone. Even the "Stranger Things" cast remains divided over what really happened at the end of the finale.

Six months after "Stranger Things" aired its finale on New Year's Eve, the hit Netflix series continues to dominate fan conversation. The show closes on a deliberately ambiguous note: Vecna is defeated, and Eleven sacrifices herself to destroy the Upside Down.

A time jump then reveals the rest of the characters picking up the pieces of their lives in her absence — but not everyone is convinced she's truly gone. Much like her apparent disappearance at the end of Season 1, some viewers believe Eleven found a way to survive.

Millie Bobby Brown, who brought Eleven to life across the entire run of the series, has been fielding those questions ever since.

At a live recording of "Happy Sad Confused" at 92NY on Wednesday, June 23, she revealed that the show's co-creators reached out immediately after the finale aired with one clear instruction: keep quiet.

"They were like, 'Do not tell anyone. Because we made it a secret kind of pledge,'" Brown said. "No one else knows. It's just us three. And what we do with that information, it'll be up to them."

Brown watched the audience reactions roll in online alongside her husband, Jake Bongiovi, as the episode dropped.

What she found was a fandom split right down the middle — and, perhaps more surprisingly, a cast that was just as divided. Even her own co-stars had drawn their own conclusions about Eleven's fate.

"Jake was like, 'Ooh, these are really split.' And the whole cast thinks I'm dead," she said playfully. "One, rude. It's so rude of them. There's something to it, surely. You guys are projecting! It's like, 'Hey guys, we get it. You want me dead!' But I was like, 'Believe!' Let's have some hope in here."

Some of her castmates, however, remain firmly unconvinced. David Harbour, who played Hawkins police chief and Eleven's father figure Jim Hopper throughout the series, stated in his Variety cover story that her death was always the obvious outcome.

"A lot of people think maybe she's in Spain or whatever," he said. "But right from the very beginning of that series — we love this little girl, but you really can't have a little girl in Hawkins, Indiana, with supernatural powers running around. She just cannot exist."

Sadie Sink echoed that certainty during an appearance on "The Tonight Show Starring Jimmy Fallon." "Is that a hot take or something? Mike's story is just one last story, and then they say goodbye to childhood. That's one final tale, and that's it. It's just a coping thing. It's stronger [that way], right?" the actress said.

Not everyone is so sure, though. At a recent fan appearance at PeopleCon, Noah Schnapp polled the crowd on whether they believed Eleven had died. After a few hesitant murmurs, he dismissed the notion entirely — wagging his finger and declaring, "No, she's alive," before flashing a thumbs-up and a grin.

The audience at the 92NY event seemed to land in the same camp. When host Josh Horowitz posed the same question, at least 80 percent of those in attendance sided with Eleven's survival. Brown's reaction was immediate and warm. "We have a hopeful audience," she gushed. "I love that!"

Pressed one final time for her own verdict, Brown offered a response that was equal parts playful and sincere. "All people say now is, 'Do you believe?' And of course I believe. I have to believe."