Phaeton (パエトン, Phaeton) was the captain of the Palace Guards for the Pope. He replaced Gigas as chief of staff after the latter's disappearance. He appears only in the anime adaptation and thus is a non-canonical character.
Phaeton is the assistant and lieutenant of Gigas. He first appeared when he informed Gigas that Docrates reported to have recovered all of the Sagittarius Cloth except for the helmet. Gigas instructs Phaeton to tell Docrates not to return unless he succeeds in retrieving the helmet.
Phaeton appeared later to protect Gigas from the Crystal Saint, however the Crystal Saint overpowers Phaeton. Gigas alerts the Sanctuary guards and tells them to detain Crystal, but they no match for him (being a Silver Saint).
After the defeat of the Ennetsu Saint, Phaeton replaced Gigas as chief of staff and ordered Eagle Marin to go to kill Pegasus. Marin asked if the Pope knew about the order, but Phaeton told to her to follow his orders without arguement and decided to send also Lizard Misty.
When neither of the two Saints returned, Arles became angry with Phaeton but he prayed for his life and the Pope agreed to give him A second chance.
Later Phaeton asked to help Ophiuchus Shaina and she refused his assistance, telling him he would be better suited helping other Saints, and Phaeton agrees.
When a guard informs them that Seiya had boarded an airplane to Greece, Phaeton orders to Shaina to stop him.
After her defeat Shaina asked for another chance, but Phaeton informs her that the mission was given to Crow Jamian.
During the invasion of the Sanctuary, Phaeton led a group of soldiers trying to stop Marin from helping Pegasus but due to the intervention of Shaina, the Saints defeated the soldiers.
Shaina defeated Phaeton, who then agreed to show them the Pisces Temple. He never appeared again.