9. Lester Crest
Lester is the mastermind behind every heist in the game. He is the control center and the man that even Trevor will report to. He knows Michael and Trevor from way back when, and when Michael appears on his doorstep, he is more than happy to get back in the game. Devilishly clever and great with computer hacking, Lester would probably be a pretty dangerous guy to piss off. Lester uses a cane to walk about, or sometimes uses a wheelchair, but this doesn't make him any less of a threat. Although Lester is never anything but helpful to Michael, Trevor and Franklin, it isn't too much to assume that he is primarily looking after himself. He wouldn't be above selling anyone out to save himself. At one point in the game, Lester gives Franklin some rather surprising advice, but as it is the final mission, I will leave that in the dark. No one puts Lester in a corner. Lester is GTA's mastermind and a covertly threatening one at that.