Steven Spielberg Director Tye Sheridan Parzival, Wade Actor Olivia Cooke Art3mis, Samantha Actor Ben Mendelsohn Sorrento Actor Lena Waithe Aech, Helen Actor T.J. Miller I-R0k Actor Simon Pegg Ogden Morrow Actor Mark Rylance Anorak, Halliday Actor Philip Zhao Sho Actor Win Morisaki Daito Actor Hannah John-Kamen F'Nale Zandor Actor Ralph Ineson Rick Actor Susan Lynch Alice Actor Clare Higgins Mrs. Gilmore Actor Laurence Spellman Lame Tattoo Guy (Reb) Actor Perdita Weeks Kira Actor Joel MacCormack Sixer No. 6655 Actor Kit Connor Reb Kid Actor Leo Heller Reb Kid Actor Antonio Mattera Reb Kid Actor Ernest Cline Screenwriter Zak Penn Screenwriter Donald De Line Producer Dan Farah Producer Kristie Macosko Krieger Producer Bruce Berman Executive Producer Christopher DeFaria Executive Producer Daniel Lupi Executive Producer Adam Somner Executive Producer Janusz Kamiński Cinematographer Sarah Broshar Film Editing Michael Kahn Film Editing Alan Silvestri Original Music Adam Stockhausen Production Design Kasia Walicka Maimone Costume Design Lucy Bevan Casting Ellen Lewis Casting