From the anime Hakaba Kitaro, Kitaro is a yōkai boy born in a cemetery. He is the last living member of the Ghost Tribe unless we count his decaying father as "living" whom has the appearance of a walking eyeball now. Kitaro is missing his left eye but his hair is generally covering it so we don't notice as much. He works at bringing peace between humans and yōkai.
Why I like him: He's a trooper that's for sure. I love his strange assortment of weapons he uses to protect either humans or yōkai. My favourite being hair. There's so many wonderful uses he has for HAIR!
Why I have him: Naaaa.
Overall: I hope to get my hands on where this short series originally came from someday, GeGeGe no Kitarou. This OP is brilliant as well!