The show: Sci Fi Channel's "Battlestar Galactica"
The perp: Gaius Baltar His crime: Giving computer codes to a Cylon agent that allows them to disable humanity's defenses and nearly wipe the race out. Why we still love him: Because rarely do we see someone as functionally nuts on TV as Gaius Baltar. The bugging eyes, the sweaty brow, the constant fidgets -- and let's not forget the stunningly attractive Cylon figment of his imagination. He may be a real heel, but at least we get to see him suffer.