Four is a Blue algebralian and the host of the show BFB, season four of BFDI. Four seems to be calm most of the time, he do get angry. Four seem to be childish. He act like a control freak because He wants everyone to stay with him forever. Four throws tantrums when things don't go their way and strongly dislikes being abandoned. He use their powers to harm the contestants just for his own fun. Four can screech at people and stun them, he can also shoot Zap out of his hands.