Hiro Hamada

Hiro Hamada is a genius, but also a rebellious, cocky, and impulsive teenager who initially uses his intelligence for bot-fighting. Following his brother Tadashi's death, he becomes consumed by grief and a desire for revenge before learning the error of his ways. He evolves into a caring, brave, and selfless hero, leading the Big Hero 6 team and dedicated to helping others and protecting his city.