Winona Ryder Joyce Byers Actor David Harbour Chief Jim Hopper Actor Millie Bobby Brown Eleven Actor Finn Wolfhard Mike Wheeler Actor Gaten Matarazzo Dustin Henderson Actor Caleb McLaughlin Lucas Sinclair Actor Natalia Dyer Nancy Wheeler Actor Charlie Heaton Jonathan Byers Actor Noah Schnapp Will Byers Actor Cara Buono Karen Wheeler Actor Joe Keery Steve Harrington Actor Priah Ferguson Erica Sinclair Actor Brett Gelman Murray Actor Maya Hawke Robin Buckley Actor Jamie Campbell Bower Peter Ballard Actor Eduardo Franco Argyle Actor Joseph Quinn Eddie Munson Actor Sadie Sink Max Mayfield Actor Matthew Modine Dr. Brenner Actor Paul Reiser Dr. Owens Actor Matt Duffer Executive Producer Ross Duffer Executive Producer Shawn Levy Executive Producer Dan Cohen Executive Producer