Cerberus

Cerberus is a character in Disgaea 6: Defiance of Destiny. He is a zombie dog with the brain of a genius, who supports Zed. He apparently carried out many experiments while he was alive, and teaches Zed the forbidden spell, Super Reincarnation. He accompanies Zed on his journey across the Netherworlds.

Personality
"Zed's companion. Bad at fighting, but makes up for it everywhere else."

- Character introduction

Story
During his lifetime, Cerberus was originally the Super Sage, Misual, a renowned sage frequently considered to be equal to the Legendary Witch Releiza. He spent his days researching magic, not for personal gain, but for the betterment of the lives of the people. Upon the loss of his beloved Releiza, he was overcome by despair and used Super Reincarnation to try to save her. After countless failed attempts, Cerberus became bitter and started believing that fate could not be changed. At one point, his body was reduced to the verge of death due to damage taken from his attempts. He was found by Bieko who transplanted his brain into a dog, saving his life.

Trivia

 * In the French version of the game, his name is changed to "Cerbère".
 * Cerberus is named after Cerberus from Greek Mythology, the multi-headed dog that guards the gates to the Underworld.