Mr. Chang was a Chinese high-ranking hatchet man serving as the representative of the See Yup company and a labor contractor for the Central Pacific Railroad. Born in China, Chang was a soldier that fought for the Taiping Rebellion, but following the end of the war Chang fled and moved to the United States from Shanghai by ship. Chang joined a Chinese gang in Los Angeles, California in 1866 called the Sze Yup company as a highbinder. Chang is in charge of all Chinese workers for the Central Pacific, and he also smuggles workers from Guangdong to California, runs a small restaurant, and sells alcohol, guns, and prostitutes. Chang eventually becomes and enemy of Bohannon, Mei, and Ah Tao. When he sees through Mei’s disguise as a male he tries to capture her and send her to China to be a prostitute, as he is Honor bound to do. When she leaves the CPR camp to escape him, Chang and his company men hunt her down to a local mine and is eventually killed by Bohannon.