Wu Dalang is a low-level character in "Water Margin" and Wu Song's brother. His real name is Wu Zhi and his nickname is "Three-inch Dinggu Tree Bark".
- Appearance: He is less than five feet (about 1.5 Meters) tall, short and insignificant, with an ugly face.
- Origin: Qinghe County, Hebei Province. His parents died young and he raised his eldest brother Wu Song alone.
- Livelihood: Qianyanggu County, selling cooking cakes for a living, honest, hard-working and tolerant.
- Family: Married Pan Jinlian as his wife, but she conspired with Ximen Qing and Wang Po to poison her with arsenic.
