- Age: 14 - Race: Human - Occupation: Hero Epona Rhiannon is a character who holds great importance in the series. According to Goddess, she is the hero who will destroy the world in the future. She is considered a man in the family register, but genetically, she is actually a woman. (Source: The World's Finest Assassin Wiki) No voice actors have been added to this character. Help improve our database by searching for a voice actor, and adding this character to their roles .