Here is a list of Halloween and Christmas Movies that feature the cast of Stranger Things. Apologies if I am missing any, it is hard identifying what is even considered Halloween sometimes. Includes the actors of: Joyce, Hopper, Mike, Will, Max, Nancy, Steve, Robin, Erica, Brenner, Billy, Owens, Bob, Murray, Vecna and Argyle. How many have you seen? Good Luck!
