7.) Ben (Lost) - As the leader of the mysterious Others, Michael Emerson plays Ben with unassuming restraint, but there's no question who's in control. Emerson, no stranger to playing creepy bad guys - as a serial killer on The Practice he famously terrorized Lindsay all the way to an Emmy - commanded the screen during his guest stint on season two of the show as the kidnapped "Henry Gale." During that time, he kept both the Oceanic survivors and the viewers guessing about his true identity until he was revealed to be one of the Others. His smartly devious and manipulative attempts to infiltrate the survivors are cloaked in righteous belief that he's doing this for the greater good. Just when you believe him he kidnaps Kate and makes her wear a dress to tea at the beach and suddenly, you're shuddering again.