Lau Kar-leung
Liu was born Sin Kam-hei in Guangdong Province, China on August 22, 1955, prior to his adoption into another family. He is often wrongly cited as being the adopted son of Lau Cham, and adoptive brother of directors and actors Lau Kar-leung (Liu Chia-liang) and Lau Kar-wing (Liu Chia-Yung). He was not adopted by the family but is Lau Cham's godson.