Charon Acheron is a minor antagonist in the anime and manga series Saint Seiya, also known as Knights of the Zodiac. He serves as the ferryman of the underworld, tasked with transporting souls across the river Acheron to Hades. Charon is known for his greed, often demanding payment from the deceased to ferry them. He encounters the main characters during their journey through the underworld and opposes them with his musical abilities, playing a lyre to attack. Despite his opposition, his role is mainly to challenge the protagonists as they advance toward Hades.