The Hellfire Club is an official D&D club at Hawkins High School. Eddie Munson is the leader of the Hellfire Club. A campaign the members participated in was known as the Cult of Vecna, during which Eddie was the master of the game.
The Hellfire Club appears to operate out of the lower portion of the Hawkins High School dining room, due to the unique misfortunes experienced in the city from the Upside Down and the tabloid media’s fear of satanic worship among teens. As hinted at by Eddie, members are often excluded if they are “lost sheep” or outsiders. Eddie also implied that membership came with a degree of protection, but demanded loyalty to campaign nights. Club members create and wear white shirts with black long sleeves, finished with the Hellfire Club name and logo in the center.