|Originally From:||The Underworld|
|First appearance:||Road to Hades|
|Voiced by:||Frank Welker|
Cerberus is a three-headed hellhound who serves as a guard to Hades to prevent those who have crossed the river Styx from ever escaping.
Cerberus is seen multiple times throughout the series, and his first appearance is in Road to Hades He has no problem with those who enter the underworld, but his job is to make certain no one gets out.