Dude, tvtropes is your friend. Here, a few links to characters you're looking for:WhiteFangofWar said:Topic. After seeing Golbez in the Dissidia games and remembering Severus Snape and Batman as well as trying to write a protagonist of my own this way, I find myself dwelling endlessly on just how far one can push that boundary before audiences would deny any possibility that this character could be a hero, never mind the protagonist. Who do you feel goes against their appearances the best?
(No anti-heroes if possible, looking for good scary or villainous-looking characters who are genuinely good-hearted and compassionate, not crazies like Hellsing's Alucard who are only good because the other guys are even worse).
http://tvtropes.org/pmwiki/pmwiki.php/Main/AntiHero
http://tvtropes.org/pmwiki/pmwiki.php/Main/NominalHero
http://tvtropes.org/pmwiki/pmwiki.php/Main/SociopathicHero
http://tvtropes.org/pmwiki/pmwiki.php/Main/VillainProtagonist
What one can get away with depends on where ones work stands on the sliding scale of idealism vs. cynicism:
http://tvtropes.org/pmwiki/pmwiki.php/Main/SlidingScaleOfIdealismVersusCynicism
http://tvtropes.org/pmwiki/pmwiki.php/Main/ShadesOfConflict
And as an author, one can make anyone sympathetic, just by giving them a sympathetic POV and enough pet the dog moments:
http://tvtropes.org/pmwiki/pmwiki.php/Main/SympatheticPOV
http://tvtropes.org/pmwiki/pmwiki.php/Main/PetTheDog