AI Overview Goku Character Biography Goku, born Kakarot, is the heroic, pure-hearted Saiyan protagonist of Dragon Ball, known for his spiky black hair, love of fighting, immense strength, and signature orange gi, who protects Earth from alien threats after arriving as an infant; he's characterized by his simple, cheerful nature, tenacity, and drive to become stronger, often appearing naive but possessing deep empathy, though his battle obsession leads to complex debates about his family role