Billy Bryk Bobby Director, Actor, Screenwriter, Producer Finn Wolfhard Chris Director, Actor, Screenwriter, Producer Fred Hechinger Jason Actor, Producer Pardis Saremi Demi Actor Abby Quinn Claire Actor D'Pharaoh Woon-A-Tai Mike Actor Matthew Finlan Ezra Actor Krista Nazaire Shannon Actor Rosebud Baker Actor Adam Pally Actor Julia Lalonde Actor Daniel Gravelle Actor Julia Doyle Actor Susan Coyne Actor Michael Costigan Producer Jay Van Hoy Producer Jason Bateman Executive Producer, Producer Micah Green Executive Producer Kristy Neville Executive Producer Daniel Steinman Executive Producer Drew Brennan Executive Producer Sarah Hong Executive Producer Kristofer Bonnell Cinematographer, Cinematographer Christine Armstrong Film Editing, Film Editor Jay McCarrol Original Music Chareese McLaughlin Production Design Peri Greig Set Decoration Rachel Anderson Costume Design Carmen Cuba Casting Maren Olson Producer Trevor Groth Producer