Charlie Megane is a fascinating subject to consider, you can either think of her as the greatest villain of hell or it's ultimate hero, all due to the fact that she's born in hell (we don't know if she's an evenement or just one example of that, I like to go with evenement). Because of that Charlie can be considered dualistically. On one hand if you're born in hell than you never experienced mortal world and it's corruption of sin, no progenital sin & all. Which would mean she's literally without sin and incapable of being evil. The only evil she displayes may simply have rubbed off on her from encountering the regular folk, sinners congemmed to hell. But on the other hand, being born in hell may also mean you literally are not human ad capable of humanity, not capable of distinction between good an evil, again, progenital sin doesn't apply to her. We come to conclusion Alastor is worst of the worst, but it may just be that Charlie is an even greater scheemer and deceiver than him, the prime evil.