Four is a complex and unstable, shifting from initially calm and even caring to extremely psychotic, sadistic, and short-tempered blue Algebralien who is kinda a bit weird but they and x are best friends! They do seem to dislike two very much! Four often/mostly hangs with x and is protective of them! Four is a silly one who actually just wants the best (pronounces: he/them) They have a very powerful loud screech! Four might be the most powerful one of the bunch! He have a fluffy blue hair, there's seems like a bump from his hair or a fluffy hair of his was divided into two and there's a fluffy side of his hair that was left below part of his hair that was making a number 4. Hes wearing a white shirt, blue vest, dark blue tie, black pants, and black shoes. His height is 187 cm. Hes the host of B.F.B stand for Battle For BFDI. Hes really good at math. Four screeches usually to stun characters, dismember them, or disrupt situations. As an alien integer, the sound is a defense mechanism that replaces regular yelling and causes anyone within earshot to turn scribbled and lose their limbs. His powers is zappies(Shoots beams of electricity from his hands to damage or instantly electrocute contestants.), Mutilation, Consumes or sucks eliminated contestants into an alternate dimension known as Eternal Algebra Class Withfour. Teleportation, Earth & Gravity Manipulation, Shapeshifting & Elasticity, Brain Manipulation, astral projection, Superhuman Strength & Speed, Invulnerability.