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
Sailor Pluto is also stated to be the daughter of Chronos, the god of time. She is ruthless and follows rather exacting laws, executing any intruders who dare violate the underworld in search for the Gates of Time. She nearly kills Sailor Moon before realizing who she is, stating that "all who break the taboo must be eliminated." Luna also states to the others that no one is to even know that Sailor Pluto exists, due to her dominion and nature, and that to her knowledge no one has ever seen her. Luna calls her a "lone warrior," noting the sadness in