Calythos is a demon and a member of the Brothers Djinn. Calythos, along with his brothers, originally ruled the world during it's Primordial State until they were banished to the Rock of Eternity by the Wizard Shazam. After the Rock was taken over by Black Adam, Calythos and his brothers would try to revert the world back to it's Primordial State so they could rule it unopposed yet again.
