In arguing with a friend over whether or not Gavin was 'the devil,' I stumbled upon a couple possibilities I hadn't thought of before...
(1) What if Olivia is really the evil one and he's just doing her bidding. The last episode sort of put my mind at ease on that one, but still, it would be a good twist.
(2) What if Gavin is working for someone else. The guy in charge rarely does his own dirty work, after all. Does Gavin have a boss?
And speaking of Gavin.... how much do you think of John Locke when watching this show? Or rather, the Smoke Monster, I guess. But when he starred down that elevator shaft and a light shot out? Um, hello. It's the hatch!!