Karragon started as a mechanic on Mars, where he encourages Terrestrial prejudice toward the Rihns. The Rhins are a peaceful people descended from the aboriginal Martians and the first terrestrials from Earth to settle on Mars. The Rhins lived in harmony with the pure-blooded humans until Karragon realized his ability to manipulate the people. Using his oratory skills, Karragon becomes dictator of Mars. His followers are called Thelists. He encourages the Terrestrials to hatred against the Rhins and makes unjust laws against them.