5. Juliet. She's working for the bad guys, but she's conflicted about it. Or, at least, we think she is. Elizabeth Mitchell is so good as Juliet. We can empathize with her, but she's still a mystery. Even as we see her betray Ben, we can't help but question and doubt her loyalties. We don't trust her, but we love her all the same.

4. Ben. He's creepy, dangerous, unstable, impotent, brilliant and funny all at the same time. We've seen him helpless on an operating table, we've seen him coldly order people murdered. Who'd have thought the poor, helpless guy Sayid was beating on last season was a manipulative mastermind? And the dude killed his own dad. He's eeeevviiiiil.

3. Sawyer. His parents' death is the defining moment in his life. The ease with which Cooper dismissed him was enough to push him over the edge. He finally gets what he wants, but ends up more conflicted than ever. Meanwhile, in his scenes with Kate, he's like a sweet, confused teenager.

2. Sun. I love Jin and Sun's story. I love how twisted it is. Why Sun didn't come clean with her dad about Jin's mom, I'll never figure out, but it sure was fun to discover that Jin only became a hit man because of her. Yunjin Kim better get a lot more screen time next season. After all, her pregnancy means her days may be numbered.

1. Locke. His journey seems central to the entire premise of "Lost." He questions fate, his faith wavers, he yearns to be someone special -- a deep desire that others repeatedly exploit -- yet struggles to come to terms with the fact that he might be. The Others are ready to welcome him as the second coming. While all the survivors of Oceanic Flight 815 want to get off the island, Locke doesn't want to leave. He knows a lot more than he's letting on.