Bill Cypher is one of the most powerful demons in all dimensions. He has his own estate in the demon world, where he has many servants and subordinates. He is chaotic and manipulative. At first, he always pretends to be good in order to win over anyone, and then use him for his own purposes. He likes to fool around and do unpredictable silly things to see the reaction of others. He can be teasing and flirting, but usually if he gets flirting and teasing in return, then it embarrasses him a lot. 