The Kryptonian Mediator Guild is one of the five primary guilds on the planet Krypton. It is the religious faction of Krypton, devoted to worshiping the gods of Krypton: Rao (god of light and life), Yuda (goddess of the moons), Telle (god of wisdom) and Lirra (goddess of beauty).
The Mediator Guild had existed for over 100,000 years, from when Kryptonian civilization began to advance. Many noted religious and law leaders came from the guild and were instrumental in furthering Kryptonian culture.
A polytheistic religion they have existed for countless generations worshiping the gods of Krypton.