Evir Derricote was an Imperial officer best known for creating such devastating bioweapons as the Emperor's Plague and the Krytos virus, which were responsible for the deaths of millions of aliens. A brilliant military tactician and scientist, Derricote commanded the 181st Imperial Fighter Wing, which was considered one of the worst TIE pilot squadrons in the Empire until the arrival of Soontir Fel in 0 ABY. For his role in the Battle of Derra IV, Derricote was promoted to General in 3 ABY and given command of an Imperial outpost on Borleias. Before accepting the post, he was commissioned by Emperor Palpatine to develop a number of species-specific viruses, including the Emperor's Plague, which was nearly unleashed by the anti-Human Diversity Alliance almost twenty years after Derricote's