Matthew Modine's Dr. Brenner (aka "Papa") and Millie Bobby Brown's Eleven are back in the new footage, which doesn't reveal a whole lot else about the season. No word yet on which it will debut, but expect the rest of the cast -- including Winona Ryder, David Harbour, Gaten Matarazzo, Finn Wolfhard, Caleb McLaughlin, Noah Schnapp, Natalia Dyer, Charlie Heaton, Joe Keery, Maya Hawk, Sadie Sink and Priah Ferguson -- to return.
