'Stranger Things' stars Millie Bobby Brown, Noach Schnapp, Sadie Sink, Finn Wolfhard, Caleb McLaughlin, Gaten Matarazzo, Charlie Heaton, Joe Keery, Maya Hawke, Natalia Dyer and Jamie Campbell Bower sat down with The Hollywood Reporter to react to some of the Internet's wildest fan theories about season five of their Netflix series. Will Eddie come back? Is Will Byers actually a clone? And is Steve Harrington going to die?! See what the cast had to say.