Hellboy comics, but I did enjoy the movies.
I am also enjoying this cartoon, the first of two. in it Hellboy goes to Japan and fights a wide variety of Japanese spooks and such things while trying to stop the demons of Thunder and Lightning from being reborn.
it's a lot of fun. impressive to see so many yokai in the cartoon, and so accurately portrayed. it makes me want to watch two of the Yokai Monsters movies now.
it's also quite funny. the voice cast is about the same as the movie cast. I recommend it.