Winona Ryder

as Joyce Byers

Caleb McLaughlin

as Lucas Sinclair

Finn Wolfhard

as Mike Wheeler

Gaten Matarazzo

as Dustin Henderson

Natalia Dyer

as Nancy Wheeler

David Harbour

as Chief Jim Hopper

Joe Keery

as Steve Harrington

Charlie Heaton

as Jonathan Byers

Millie Bobby Brown

as Jane "Eleven" Hopper

Noah Schnapp

as Will Byers