My obscure(for now) reading focus

Okay guys, my reading focus is one of the most obscure and unmentioned characters in the book (or at least at the moment, but no spoilers), Roger. I have noticed that he seems to be the sidekick or helper of whomever is winning an argument (I'm referring to the Jack vs. Ralph arguments) However, in recent chapters, he has turned more to Jack's side permanently. Later in the book however... he becomes far more noticeable and a bit scary... but once again no spoilers.