Wu Yong is a man with a fair and handsome face and a long beard. He is a professor of literary arts, brilliant military strategist and advisor. He is nicknamed "Resourceful Star" for his wits, and is said to be comparable to Zhuge Liang and Chen Ping. The Liangshan heroes rely heavily on him for battle plans. He is one of the seven men who initiated the founding of the Liangshan cause and one of the earliest to join the Liangshan band. After Song Jiang died, he commits suicide by hanging themselves from a tree near Song Jiang and Li Kui's graves.