TV Stranger Things - Season 4 Episode 4 : Chapter Four: Dear Billy Stranger Things - Season 4 Episode 4 : Chapter Four: Dear Billy 8.593/10 by 18846 users Max is in grave danger... and running out of time. A patient at Pennhurst asylum has visitors. Elsewhere, in Russia, Hopper is hard at work. Details Casts Posters Images Title Stranger Things - Season 4 Episode 4 : Chapter Four: Dear Billy Alternative Titles Coisas Estranhas, 怪奇物语, Extraño al revés, უცნაური საქმეები, Παράξενα Πράγματα, Stranger Things: Keményebb leckék, اتفاقات عجیب, ストレンジャー・シングス, 기묘한 이야기, Чудни Нешта, Cosas Extrañas, Странные вещи, Крайне странные события, Загадочные события, ОСД, أشياء غريبة, Zvláštne veci, Tuhaf Şeyler, Загадкові справи, Дивні дива 3, Дивні дива 2, Stranger Things 2, Stranger Things 4, Stranger Things 3, Stranger Things 5, Montauk First Air Date 2016-07-15 Last Air Date 2022-07-01 Number of Episodes 42 Number of Seasons 5 Genres Drama, Sci-Fi & Fantasy, Mystery, Networks Netflix, Casts Millie Bobby Brown, Finn Wolfhard, Noah Schnapp, Gaten Matarazzo, Caleb McLaughlin, Sadie Sink, David Harbour, Winona Ryder, Natalia Dyer, Joe Keery, Charlie Heaton Plot Keywords , Jane 'Eleven' Hopper Millie Bobby Brown Mike Wheeler Finn Wolfhard Will Byers Noah Schnapp Dustin Henderson Gaten Matarazzo Lucas Sinclair Caleb McLaughlin Max Mayfield Sadie Sink Jim Hopper David Harbour Joyce Byers Winona Ryder Nancy Wheeler Natalia Dyer Steve Harrington Joe Keery Jonathan Byers Charlie Heaton Erica Sinclair Priah Ferguson Robin Buckley Maya Hawke Murray Bauman Brett Gelman Henry Creel Jamie Campbell Bower Holly Wheeler Nell Fisher Vickie Amybeth McNulty Lt. Akers Alex Breaux Dr. Kay Linda Hamilton Episodes List Stranger Things Season 4 :Episode 1 Chapter One: The Hellfire Club Chapter One: The Hellfire Club 2022-05-27 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 2 Chapter Two: Vecna's Curse Chapter Two: Vecna's Curse 2022-05-27 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 3 Chapter Three: The Monster and the Superhero Chapter Three: The Monster and the Superhero 2022-05-27 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 4 Chapter Four: Dear Billy Chapter Four: Dear Billy 2022-05-27 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 5 Chapter Five: The Nina Project Chapter Five: The Nina Project 2022-05-27 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 6 Chapter Six: The Dive Chapter Six: The Dive 2022-05-27 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 7 Chapter Seven: The Massacre at Hawkins Lab Chapter Seven: The Massacre at Hawkins Lab 2022-05-27 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 8 Chapter Eight: Papa Chapter Eight: Papa 2022-07-01 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl. Stranger Things Season 4 :Episode 9 Chapter Nine: The Piggyback Chapter Nine: The Piggyback 2022-07-01 When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl.