Cerberus is a Guardian Force (GF) in Final Fantasy VIII, not a human character but a summonable magical entity. Based on the mythological three-headed dog, Cerberus plays a supporting role by assisting the party in battles. When summoned, Cerberus grants the Double and Triple status to the entire party, allowing them to cast multiple spells per turn. This makes Cerberus a valuable asset for strategic spellcasting and enhances the team's effectiveness during challenging encounters.