I haven't ever really found any completely evil characters in PS recently (probably because my definition of evil is rather skewed), but I've seen a lot of "bad" characters running around. "Bad" meaning that the character can also be good, but just doesn't follow the rules. Which is kind of annoying since you have a bunch of "heroes" assaulting people who they think have done things, and somehow they avoid the guards... even though they're in a position that would probably leave them on a megara flying toward the Crystal...
But I haven't been playing for a while, so I could be wrong.