<Li> T.J. Miller as i - R0k, a freelance dealer and mercenary often employed by IOI . </Li> <Li> Simon Pegg as Curator / Ogden Morrow, a co-creator of the OASIS, who eventually left the company . He is concerned about how many people have developed an unhealthy dependency on the game . </Li> <Li> Mark Rylance as Anorak / James Halliday, the deceased co-creator of the OASIS who reveals an Easter Egg hidden in the OASIS after his passing that grants control over the OASIS to its winner . </Li> <Li> Philip Zhao as Sho / Zhou, a Gunter and one of the "High Five". He is 11 years old in reality . </Li>

Who plays james halliday in ready player one