Who’s the worst fictional villain you can think of? As in, the one you hate the most, find the most evil, are happiest to see defeated? Not the cardboard, two-dimensional variety, but the most deliciously-written, most entertaining, best villain? Not necessarily the most “evil,” so much as the best-conceived on the part of the author…oh, you know what I mean!
I am still feeling pretty crap, so my brain isn't really functioning properly tonight, so I am going to fall back on an old favourite and say that the worst villain is Black Jack Randall from the Outlander series. He is really evil, but Diana Gabaldon made his reasons for being like he was quite complex.