The heroic figure that confronted the Hydra in Greek tales is Heracles (or Hercules). During his second labor, he faced this multi-headed serpent-like creature, known for its regenerative powers. Every time Heracles cut off one head, two more would grow back. With clever tactics and the assistance of his nephew Iolaus, who cauterized the necks, Heracles ultimately defeated the Hydra, exemplifying themes of courage, strategy, and the triumph of good over evil.