The mythological figure known for his twelve labors is Hercules. In Greek mythology, Hercules, known as Heracles in Greek, was tasked with completing twelve seemingly impossible labors as a penance. These labors included feats such as slaying the Nemean Lion, capturing the Golden Hind of Artemis, and retrieving the apples of the Hesperides. His incredible strength and resilience made him a celebrated hero in ancient mythology.