In a world indulged in evil, heroes and villains thrive. Though the world's motto seems to be the unending battle against good and evil, its the in between and the shifting roles that make the world what it really is.
They're not all pale, pasty nerds with chemistry degrees!
The Anti-Villain is the Anti-Hero's opposite: Where the Anti-Hero does good deeds for morally bankrupt reasons, the Anti-Villain has good intentions but deplorable methods.