Nolan Sorrento is the bad guy. There are no shades of grey here. He's all bad. Keep in mind though he doesnt sound like a bad guy. He has a sleak voice and is very use to geting what he wants. Sorrento is the head of Innovative Online Industries, also known as IOI, the world's largest ISP. In the Hunt for Halliday's egg, they employ a vast army of people called the Sixers, because all of IOI's employees use their ID numbers as their avatar's name, and these numbers all start with the number 6. Why have they put so many resources into a videogame Easter egg? To gain control of OASIS.