He has the appearance of a young man with short, messy black hair as well as slightly elongated and pointed ears. He wears a black cassock. He has shown to be someone quite calm, Has a fondness for collecting information and doing experiments. Does not seem to have interest or concern in others. Despite his coldness, Beelzebub has shown some respect and appreciation for Hades, who for a long time was his only emotional support and closest friend before hades died.