Dustin Henderson is a main character in the Netflix series Stranger Things, portrayed by actor Gaten Matarazzo, known for his intelligence, humor, and loyalty to his friends. He is a core member of "The Party," a group of kids who battle supernatural threats from the Upside Down, and is characterized by his love for Dungeons & Dragons, his scientific curiosity, and his rare genetic condition, cleidocranial dysplasia (CCD), which affects his teeth and collarbones. 