Tye Sheridan as Parzival / Wade Watts[2] Olivia Cooke as Art3mis / Sam Cook[3] Ben Mendelsohn as Nolan Sorrento[4] Mark Rylance as James Donovan Halliday / Anorak[5] Simon Pegg as Ogden Morrow[6] T. J. Miller as i-R0k[7] Hannah John-Kamen[8] Win Morisaki as Toshiro Yoshiaki / Daito[9] Philip Zhao as Akihide Karatsu / Shoto[10]