Ur-Quan Kohr-Ah
The Kohr-Ah are a subspecies of the Ur-Quan and were not present in Earth's part of the galaxy during the first Alliance-Hierarchy war in Star Control I. Star Control II takes place during the Second Doctrinal Conflict, in which the Kohr-Ah will kill all sentient life if victorious. The Kohr-Ah are physically similar to the Kzer-Za except their skin is black and their eyes are a deep red. They are led by a matriarch called the Kohr-Ah Primat.
Conflict with the Kohr-Ah is unavoidable for any other species as they follow the "Eternal Doctrine," their interpretation of the "Path of Now and Forever," which reveals that their purpose is to "cleanse" the galaxy of all non-Ur-Quan sentience. The Kohr-Ah carry out the words of their doctrine to ensure their freedom and security, and to a lesser degree, they believe they are doing those they cleanse a service: the opportunity to be reincarnated as an Ur-Quan, the superior race. Perhaps as a result of this dispassionate view, neither the Kohr-Ah nor the Kzer-Za will insult or lie to their adversaries.
Read more about this topic: List Of Star Control Races, Introduced in Star Control II