Castithans are one of the more prominent of the seven Votan races. They appear mostly humanoid, though they're skin is notably more pale, bordering on albinism. Other characteristics include white hair and yellow eyes.
Prior to their arrival on Earth, the Castithans had a primarily patriarchal society, with a rigid caste system where social standing was mostly determined by ancestry. Since the war, and the ensuing chaos, this system has greatly diminished, however.
Notable Castithans in the show are Datak Tarr, a member of one of the lower castes who co-founded Defiance, and his wife Stahma Tarr, a member one of the more powerful castes.
