Wyrpuuk Cha was a member of the warrior caste of the Yuuzhan Vong, who held the rank of commander during his species' invasion of the galaxy. During the Yuuzhan Vong War, when elements of the New Republic Defense Force retook Borleias from the Yuuzhan Vong, Cha was chosen by Warmaster Tsavong Lah to assault the planet with his fleet and drive the New Republic from the Pyria system.