"Oh, hell. HER??"
(shivers)
"Guh. Think 'The Devil Wears Prada', 'American Psycho', an' 'Needful Things' all wrapped up in a package that's all lips, hips, nips an' whips."
(shivers again)
"Can we talk 'bout somebody else? She creeps me out..."

*****

For Charmfrost here, I pulled from several sources: First and most obviously from the Diablo series. Got a li'l bit from D&D, and finally from an interesting looking RPG called In Nomine. Got great personality tips to flesh her out from that one.
So, what we have for a finished product is a supremely confident, wickedly intelligent, magnificently charismatic and unrepentantly sociopathic demoness. However, everything about her can't be told in just a small description. I've been ironing out a complete backstory for her that connects with the histories of several other characters of mine.