Stranger Things is wrapping up its run on Netflix with a fifth and final season spread across three different drops - but not every cast member is returning. The hit series, which debuted in 2016, focuses on a fictional town where a series of supernatural events take place and cause mystery and mayhem. Over the course of five seasons, Stranger Things has catapulted its cast members - Winona Ryder, David Harbour, Finn Wolfhard, Noah Schnapp, Millie Bobby Brown, Gaten Matarazzo, Caleb McLaughlin, Natalia Dyer, Charlie Heaton and Joe Keery - to stardom.