Supreme Overlord Shimrra is the evil leader of the Yuuzhan Yong in the New Jedi Order novel series. Little does he know that his warlord plots to overthrow him as soon as he has the chance. He was killed in the New Jedi Order novel, The Unifying Force when the Galactic Federation of Free Alliances retook Coruscant.
Physically, Shimrra is imposing. Tall, even by the standards of the Yuuzhan Vong, he is also heavily built. He is feared in combat for his prowess, and he fought a duel with Jedi Master Luke Skywalker when the Galactic Federation returned to Yuuzhan'Tar, or Coruscant. After Luke, and Jacen and Jaina Solo fought of his elite group of bodyguards, Luke faced Shimrra, while Jaina and Jacen followed his escaping servant Onimi. Luke struggled against Shimrra, but eventually slew him by severing his head with two lightsabers.
Little did the Jedi know that there was more to Onimi than met the eye. Being the last Yuuzhan Vong to possess a connection to the Force, he used mind controlling toxins to bend Shimrra to his will, and thus while posing as his jester, the cackling and deformed Onimi in truth bore supreme control over the entirety of the Yuuzhan Vong.
