Karl is a humanoid resin statue resembling a pirate. He dislikes being considered a 'pirate' because of his past. Despite looking quite human, he despises them, and wishes to kill them, harm them, whatever. Karl has a cream colored shirt, brown pants, brown boots, white and orange striped socks, a brown, sleeveless coat, and a yellow bandana over his head. He has a blonde tuff of hair over his (left) eye, which is scratched up, showing nothing but a grey surface. He has pale skin somewhat. Karl has blonde hair, with a long, almost spiky ponytail. He is tall, almost 6'0. Karl is an impulsive liar who lies to get closer to his enemies. An example would be when he tells one opponent of his that his parents had died and he has not recovered from the incident. Although, it is not actually confirmed whether or not that was true. Karl seems to be great with fighting, while his black, shapeshifting, raven bird (Arma) helps him in fights. He is heavy because of being made of resin stone. He says that he 'weighs tons' when fighting Mizuno because he was in water. Karl doesn't like long ranged combat, especially guns. He gets enraged when seeing a gun (it triggers his bad memories/past), and goes into a fury that no lies can exactly hide. He likes playing the violin because a red-headed girl he used to like played the violin. Karl cannot eat nor sleep, but he relies on energy from a magical castle that is in an abandoned, fictional theme park called "Castle of Nations". Karl hates the castle, and wishes to stop relying on the energy to live. If he runs out of energy, he simply dies. He can store his missing body parts in his head, an example being when Steffi and Benzene were fighting him and managed to break his finger off. Karl simply "ate" the finger, then shook his head, the finger moving. He then says that he "rattles", which made Steffi say, "this guy is insane." Karl has an intense hatred for another person. He dislikes the Climber a LOT. If Karl was able to turn human, he dies.