Wirriz was a Rebel Alliance Vice Admiral of the male Quarren species who fought in the Galactic Civil War.
Admiral Ackbar convinced the Mon Calamari pirate, Tuz, to become a privateer for the Rebel Alliance; subsequently, Wirriz and Commander Fortune were assigned to oversee Tuz's activities. Wirriz, acting as Tuz's lieutenant, collaborated with him to seize Imperial supplies and transport them to the Alliance.
Several months into this operation, in 0 BBY, Vice Admiral Wirriz, accompanied by Tuz, Fortune, and two Gamorreans, delivered the stolen Imperial tech to the Alliance's Mon Calamari cruiser Independence. In addition, he and his team gave Commanders S'man and Hamo Blastwell intelligence that resulted in an attack on an Imperial repair dock.