desty nova.
I love him !
i was like 13 when i met him and i instantly thinked:
THIS IS THE MOST EPIC CRAZY SCIENTIST (and also "evil/bad" guy) I HAVE EVER SEEN"
and i still didn't found better nowadays.
if you know gunnm, battle angel alita in english, but for once i'm proud of the french version, you know what i'm talking about.
THIS guy is the real deal, just read the manga just for him, you may also know gunnm last order but in my opinion the original arc was way better.
anyway this gonna turn into spoilers, just warning you.
as a "scientist" nova experiment a LOT of thing, like nano machines or more interesting: karmatron, hard to explain, to do it simple he tries to influence, change and observe karma of peoples.
what i like about him is his way of thinking, like he could have been killed by gally (main character), he'll kill her back and then ressurect her with an even more powerful body just to see her karma.
no hard feelings.
i won't speak too much about him right now, i'll just show you THE thing that marked me for life:
warning that's gore stuff here's the link:
http://view.thespectrum.net/series/battle-angel-alita-volume-1.html?ch=Volume+9&page=11

so ?
you're alright ?
have you ever seen even another mad scientist do that !
he CUTS OPEN HIS OWN FREAKING HEAD TO SHOW THEM !
that's the most badass, epic, mad, evil... thing i have ever seen !!!
he's trolling and playing with everyone's sanity !
i just love this character, i'll speak of him more another time to show you how awesome he is.
have a nice custard tart, hehe.