In the mirror universe, Gral was a notorious Tellarite military leader during the 22nd century. He rose to the rank of general within the Tellarite military, though he was officially retired as of 2155. He was widely acknowledged as the greatest strategic thinker on Tellar Prime, and was responsible for a number of attacks on the Terran Empire's network of starbases. He was at one point considered the most wanted enemy of the Empire, dubbed the "Butcher of Berengaria" in Imperial propaganda.