So obscure media that have awesome original characters is what's you're asking for right? You might want to rephrase the question a tad since it's a bit vague. Things that have sequels don't count as original I assume?
Anyway, this badass:
Adam Fucking Blade. Manliest man to ever man.
Yes, I had to use that particular screenshot. Thanks for asking :3
The immortal anime words "It makes sense in context!" strikes again.
Needless was so overlooked, nobody ever seems to recognise it. Nobody has ever said to me "hey! Needless! I remember that anime!" when I post something on it. Shame really... Look it up! It's amazing!
Really, I could list a load of anime characters right now. I won't since nobody would ever bother to read it.
Does Persona 4 count as original? Fuck it, BROSUKE ALL THE WAY BAYBEE!