Huangfu Duan is a weird-looking man with green eyes and a long yellow beard. He is believed to be a non-Han Chinese and is nicknamed "Purple Bearded Count". He specializes in healing wounded horses and curing them of their illnesses. Huangfu Duan is Liangshan's veterinarian and is in charge of the care of horses. On the eve of the final campaign against the rebel leader Fang La, the emperor summons Huangfu Duan back to the capital. Huangfu Duan serves as an imperial veterinarian for the rest of his life.