Stranger Things is one of Netflix’s most iconic original series, blending supernatural horror, 80s nostalgia, and coming-of-age storytelling. Since its debut in 2016, it has built a die-hard fanbase, inspired Halloween costumes worldwide, and revived interest in retro music, arcades, and Dungeons & Dragons. If you’re planning to rewatch the show or want to understand why some people compare it to Game of Thrones, here are some crazy and mind-blowing facts about Stranger Things.
1. The Show Was Originally Called “Montauk”
Before Netflix picked it up, Stranger Things was pitched under the name “Montauk,” inspired by real conspiracy theories about secret government experiments at Montauk Air Force Station. The story was initially supposed to take place on Long Island. Only after development began did the setting shift to the fictional Hawkins, Indiana, allowing the Duffer Brothers to freely build their own town and lore.
2. Eleven Was Almost Played by an Adult Actress
The character of Eleven, one of the most iconic roles in modern television, wasn’t always intended to be played by a child. Early drafts imagined her as an older, grittier character. It wasn’t until auditions started that the Duffers realized the emotional weight of the story depended on a younger actor. Millie Bobby Brown’s audition was so compelling (especially her ability to convey emotion with no dialogue) that the role was rewritten specifically for her.
3. Gaten Matarazzo’s Condition Changed the Script
Gaten Matarazzo, who plays Dustin, has cleidocranial dysplasia, a rare condition that affects bones and teeth. Instead of hiding it, the Duffer Brothers integrated it into Dustin’s character. This gave the show more authenticity and helped raise awareness about the condition in the real world. It also explained Dustin’s missing teeth in Season 1, something fans initially thought was a quirky acting choice.
4. The Kids Weren’t Allowed to See the Monster at First
To make their reactions more realistic, the young cast wasn’t shown the final design of the Demogorgon during filming. They acted mostly with rough props, costumes, or, in some cases, nothing at all. This created genuine fear and confusion, which translated effectively on screen. Noah Schnapp even said he didn’t know what the fully designed monster looked like until after Season 1 wrapped.
5. The Christmas Lights Scene Was Filmed in One Take
One of the most memorable moments in Season 1 is Joyce communicating with Will using Christmas lights. The chaotic screaming, flickering walls, and emotional breakdown happened in one long take. Winona Ryder later explained that she pushed herself into a frantic emotional state before the cameras rolled, giving the scene its raw intensity. The production crew had to rehearse the lighting cues meticulously so everything synced perfectly.
6. Stephen King Helped Millie Bobby Brown Get Cast
Stephen King, who had previously seen Millie in a BBC series, tweeted about how impressive she was as an actress. The Duffers, lifelong Stephen King fans who were already inspired by his novels, took the comment as a sign to seriously consider her. After her audition, King’s praise seemed prophetic. Her performance as Eleven would become one of the show’s main highlights.
7. The Upside Down Wasn’t Fully Planned at First
Fans often assume the show’s mythology was meticulously mapped from Season 1, but the Duffer Brothers have admitted otherwise. The Upside Down originally had a much simpler concept: a dark alternate space holding Will hostage. As the show gained popularity, the world-building became more elaborate. Concepts like the Mind Flayer, the Hive Mind, and Vecna were developed later as the story expanded.
8. Kate Bush’s “Running Up That Hill” Became a Global Hit Because of Max
When Season 4 featured Kate Bush’s 1985 song during Max’s terrifying encounter with Vecna, the track gained worldwide attention. It topped charts in multiple countries nearly four decades after its release. Kate Bush herself thanked the show for reintroducing her music to a new generation, and Stranger Things became one of the few TV shows in history to bring an old song back to No. 1 on global streaming platforms.
The cultural ripple from moments like Max’s Vecna scene also fueled demand for show-themed merchandise, with collectors hunting down everything from vinyl soundtracks to a dedicated Stranger Things plush collection featuring Eleven, Vecna, Demogorgon, and other fan favorites. These limited drops tend to sell out fast because they tie a tangible keepsake to specific scenes fans already rewatch on loop, turning standout moments from the series into shelf-worthy pieces of pop culture history.
9. The Actors Were Not Allowed to Grow Their Hair or grow too Tall Too Fast
Because the show takes place over relatively short time periods, the young cast had to maintain a certain look. Wardrobe and makeup teams worked overtime to hide growth spurts, changed jawlines, and deepening voices. Caleb McLaughlin and Finn Wolfhard joked in interviews about being told not to drastically alter their hairstyles between seasons, as it would disrupt continuity.
10. Vecna’s Makeup Took Over 7 Hours to Apply
Jamie Campbell Bower, who plays Vecna, endured a gruelling makeup process daily. The full-body prosthetic suit was composed of over 25 pieces of latex and silicone. Only his left eye and mouth were exposed. Despite the slow, uncomfortable routine, Bower stayed in character even between scenes. He avoided speaking to the young cast beforehand so they would genuinely react with fear during their first encounters with Vecna.
11. Many Hawkins Locations Were Real, Not CGI
While people assume much of the show relies on digital effects, a surprising number of sets were real. The Hawkins Middle and High School were filmed at an actual abandoned school in Georgia. The Byers’ house interior was rebuilt on a soundstage, but the exterior was a real residence. Even the arcade in Season 2 used functioning retro machines rented specifically for authenticity. CGI was used mainly for the creatures and Upside Down particles.
12. The Show Was Almost Canceled Before It Aired
Stranger Things was rejected by multiple networks. Nearly 20 different studios passed on it, claiming the show was “too dark,” “too weird,” and unmarketable with kids in lead roles. Netflix eventually agreed to take it—but even then, executives were unsure if it would succeed. When Season 1 premiered, it instantly became one of Netflix’s biggest hits, surpassing all expectations and catapulting the child actors into global stardom almost overnight.