When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl.
Millie Bobby Brown
Finn Wolfhard
Gaten Matarazzo
Caleb McLaughlin
Joe Keery
Winona Ryder
David Harbour
Natalia Dyer
Charlie Heaton
Maya Hawke
Sadie Sink
Jamie Campbell Bower
Brett Gelman
Paul Reiser
Matthew Modine