Stranger Things has a brilliant cast, but if you have a cast full of kids – get ready to the pranks on set. Who is the hardcore prankster on Stranger Things? How did Millie Bobby Brown almost ruin the costume designer's wedding? How did the Duffer brothers pulled a prank on Sady Sink? And who played a scary trick on Gaten Matarazzo? While Stranger Things 4 is in the making, watch this video to get to know about the funniest pranks on set! All of the Stranger Things kids are professional - but they are still kids, who just don’t think about the outcomes! In many interviews Noah Schnapp did not hesitate to proudly proclaim Millie Bobby Brown and himself to be the biggest pranksters among the cast of the Netflix hit series. Paired up with Millie Bobby Brown, they made Stranger Things costume designer think that her wedding is ruined! Gaten Matarazzo also got pranked by Millie Bobby Brown at least once – but it was an epic prank because Gaten Matarazzo calls her a hardcore prankster now. The Duffers themselves like to play tricks on their actors. Sadie Sink was really stressed out because of the practical joke the Duffers pulled on her. And last year the whole cast of Stranger Things accompanied by Jimmy Fallon surprised their fans in Madame Tussauds Wax Museum. They made up a remarkable exhibit that unsurprisingly looked a bit too real: the fans were scared half to death when the wax statues started moving and talking to them! Stay with OSSA Movies to get to know the coolest behaind the scene details about your favourite shows! Welcome to OSSA Movies - you handy source of cinematic easter eggs movie critics. Are you in love with Avengers and Game of Thrones? We are obsessed with them too! We also have you covered on greatest Disney and Netflix projects. We know what you’ve been looking for! Of course, we have Top 10 details you missed in Avengers Endgame or Top 5 comedy moments from your favourite series! Are you ready for a heartbreaking tv clip? “cause we have them too!