Huang Zhong
Prior to joining Liu Bei's force, Huang Zhong served under Han Xuan in the novel as an Associate General in Changsha. When Liu Bei delegated Guan Yu to conquer Changsha, Han Xuan somehow suspected that Huang Zhong was persuaded by Guan Yu to be a traitor despite Huang Zhong's fighting on the battlefield against Guan Yu, and arrested him for execution. Huang Zhong's fellow military comrades organized a revolution to save his life, killed Han Xuan, and surrendered to Guan Yu. After joining Shu Han, Huang Zhong defeated Xiahou Yuan of Cao Wei in the Battle of Mount Dingjun, secured Shu Han's northern border.