Chow Yun Fat and Nicholas Tse Ting Fung's parents Patrick Tse Yin and Deborah Li worked together before. Fat Gor in 1976 worked on HOTEL (KONG CHIU), an early TVB lead role for him. He played Siu Wa Shan while Lai Goo played Ching Yat Lung (Shek Kin)'s mistress Lui Yan, who also had an affair with Siu Wa Shan. Back then Lui Yan shooting Siu Wa Shan was the climatic scene, which became a classic television scene.
Chow Yun Fat and Tse Yin worked together in 1981 on THE SHELL GAM (CHIN WONG KWUN YING WUI). Sei Gor was the "King of Con Kings" To Yat Siu, Fat Gor played Ah Lung who wanted to become To Yat Siu's apprentice.
Source: Mingpao