Constantine is a half demon/half human with a human shape and size but with demon teeth and black horns on his head. He has red hair and black eyes with slight red facial hair. He wears a gold crown, a blue and gold robe, a white shirt, white pants and black shoes. He holds a gold staff.
He is heavily narcistic and evil. He is known to abuse the citizens of Thales. He only shows affection towards his husband Judas Huran. He also has a hidden good side to him.
- He is the adoptive father of Jay Brendon from The Demon's Light and two unknown characters.