The Underrated of 2006

Robert Knepper
"Prison Break," FOX

You know him as: One-handed pedophile and jailbird T-Bag

Why we like him: Theodore Bagwell is one of television's nastiest characters, a cunning and remorseless predator. His crimes are reprehensible and unforgivable and he just keeps piling up fresh corpses in his wake. Why is it, then, that if T-Bag became the latest Fox River escapee to take a dirt nap, we'd be really sad to see him go?

Where else you've seen him: Knepper's TV credits included "Carnivale" and "Presidio Med," well as features like "Hostage" and "Good Night, and Good Luck"