Beelzebub

Beelzebub is one of the Seven Princes of Hell and the main antagonist of the first arc of the story: Highschool DxD: Til Midnight. He is the mastermind behind the creation of the Special Children. Beelzebub is also the one who manipulated the events that lead to the release of Trihexa.

Appearance
Beelzebub appears as a man in his early to mid-twenties. He has long white hair that reaches down to his back Beelzebub possesses sulfuric yellow eyes much like his fellow Princes. He wears dark clothes with tall purple boots reaching his knees and purple gloves with white outlines and a long black cape. Sometimes, he wears a black bull mask with red patterns on it. While possessing Akeno, he takes her appearance with her long black hair in a ponytail and yellow eyes In his true form, Beelzebub appears as a massive demonic being with four arms and wings with a horse's body.

Trivia

 * Beelzebub's appearance is based on Kuranashi from Sousei no Onmyouji.