Emperor Ko is the evil ruler of all the Beasts and controller of Goll. He has many magical powers and is more powerful than many other Wizards of Droon. He was defeated hundreds of years ago by Galen Longbeard but was reanimated from his dead state by Lord Sparr and the Coiled Viper. He crowned himself with the viper in order to make himself more powerful, and eventually meet his end goal; to destroy Droon forever.