I first thought of a little gag comic someone made with Final Fantasy's Kuja and Sephirtoh.

Sephi: I'm the evilist around here!
Kuja: No I am!
Sephi: Oh yeah? Well at least I wear pants!
Kuja: At least I'm willing to take mine OFF!
Sephi: ...

ps this is not word for word but from memory.

OOh, purple!

I think of an evil demon spell-caster.

I think of some posh noble acting snobby to some people helping despite his current predicament with a single shred of gratitude. (if I was one of those people dude you'd wake up with stitches on your face and no idea what happened >[ )

There's something missing from the face... but then I stare long enough and realize it's my inability to see through ninja disguises.

black, blue and white moose?

... xD
-makes moose sounds-
I don't think I've ever heard a moose before.

You remind me of a summoning gone terribly wrong... or right?

A reindeer goddess.

Evil mint ice cream!!

I first think of Scarlet from Final Fantasy 7. Not that she looks like her but she does look like she laughs like "Kya ha ha!"

Catwoman with a halo? :3

Dark ice princess.

hahaha Coro wants me in her closet XD

oh and up truthfully a demon mistress
assassin!!!!

A demon.

a kitten watching a butterfly