I reckon we have the makings of a Holywood blockbuster on our hands here. I would cast Morgan Freeman in the role of Explicit, and somebody like Ralph Fiennes as the Green/BigJohn hybrid. Only someone with the gravitas and true thespian skill as Ralph Fiennes could adequately portray the complex dark machinations of the Green/BigJohn dual personality and give it its proper sense of creepiness. And as well all know, only british actors are allowed to play villians in films. Not sure about who would play Hyper, maybe some unknown child actor making their breakthrough role along the lines of Jake Gyllenhaal in Donnie Darko.