...sexy. Angel Sanctuary is amazing.
Mad Hatter is a(n unbelievably sexy) character from a manga called "Angel Sanctuary", which has a many elements of and references to Alice in Wonderland. This Mad Hatter is actually more of the Mad Hatter -and- a sinister Cheshire Cat rolled up into a fallen angel. She's not one of the main characters per se, but she's heavily influences the plot. The manga is sort of gothic and violent at times, but it is -AMAZING- and I highly recommend it to anyone who doesn't mind a story that messes with Theology a bit.