Bellion

is a member of the Demon Clan and the leader of the Six Knights of Black.

Appearance
Berlion, like all demons, has black eyes. His skin is purple, which imitates his hair color. He has a red circular mark on his chin, possibly his demonic mark. He's very muscular and has the appearance of a human. His hair resembles Ban's hair in his wanted poster.

History
Not much is known about Berlion, but it's been said that he's the leader of the Six Knights of Black. Three thousand years ago, it was stated that their power is on par with the Ten Commandments.