Shimrra Jamaane was one of the final Supreme Overlords of the Yuuzhan Vong during the Yuuzhan Vong War in which Yuuzhan Vong reached and invaded the Star Wars galaxy after leaving their home galaxy eons ago. In truth he was the puppet of Onimi, a Force sensitive Yuuzhan Vong who had taken control of Shimrra in the years leading up to the invasion. Using the power of the Force, Jacen Solo ended the life of Omini a short time later - killing the last true Supreme Overlord of the Yuuzhan Vong.