Greek underworld his duty was to bring these souls to the underworld and no one would persuade him to do otherwise. Cerberus (Kerberos), or the "Hell-Hound", is Hades' massive multi-headed (usually three-headed) dog with some descriptions stating that it also has a snake-headed tail and snake heads on its back and as its mane. Born from Echidna and Typhon, Cerberus guards the gate that serves as the entrance of the underworld. Cerberus' duty is to prevent dead people from leaving the underworld. Heracles once borrowed Cerberus as the final part of the Labours of Heracles. Orpheus once soothed it to sleep with
Pluto (Marvel Comics) realms, and he has made occasional use of potent mystical items such as the Gem of Tartarus, which encased the four original Defenders within an enchanted pillar, though the Gem itself was fragile and swiftly shattered. Pluto (Marvel Comics) Pluto is a fictional deity appearing in American comic books published by Marvel Comics. The character is based on the Greco-Roman god of the same name. Pluto first appeared in the pages of "Thor" #127 in 1966 where he was adapted by Stan Lee and drawn by Jack Kirby. Pluto is the Olympian god of the Underworld, death, and the dead,