Morrigan from Darkstalkers!
I cosplayed Morrigan at Avcon 2011 and had a great deal of fun.
I never can decide whether I prefer Morrigan with green or teal hair, but I liked the green wigs I could find for her better than the teal wigs (and I think green suited my coloring better anyway) so I went with green.
What's your favorite Morrigan hair color?
These are two remaining versions of the hand-colored art card print I was selling at Avcon 2011. If you're interested in purchasing any of them, read here