The Underworld is known to be guarded by Cerberus.
The Underworld is guarded by Cerberus.
The God Osiris was the god of the Underworld.
We are not told in Greek myth.
Cerberus, hound of Hades.
Cerberus was the hound who guarded those gates.
Cerberus was a three-headed, dragon-tailed dog who guarded the entrance to the Underworld.
The monster that guards the exit from the Underworld is Cerberus (Kerberos).
Lycans -
Hagrid's hellhound, Fluffy, is an allusion to the Greek guardian hellhound Cerberus, who guarded the Underworld, as Fluffy guarded the Sorcerer's Stone.
Cerberus was the dog that guarded the kingdom of Hades. So Hercules had to go to the Underworld.
Charon was the ferryman, Cerberus guarded the gates, and Hades ruled the entire kingdom.
Cerberus (The three-headed dog, that guarded the gates of the underworld)[Lernaean] Hydra (A serpent-like creature with many heads)Minotaur (A beast with the body of a human and the head of a bull)tymphalian birds (Birds that feed on humans)