Cerberus is the legendary three-headed dog that guards the gates to the Underworld, preventing the dead from leaving. According to Greek mythology, this formidable creature belonged to Hades, the ruler of the Underworld. Cerberus was known not only for his multiple heads but also for snakes writhing around his head and a serpent's tail.
Curious to explore more about mythical creatures? Visit our Greek Mythology section. For more about creatures like Cerberus, check out our page on Mythical Monsters.