Vincent Zhao Wen Zhuo - WONG FEI HUNG
Rosamund Kwan Chi-Lam - COUSIN YEE
Max Mok Siu Chung - FOON
Kent Cheng Jak Si - "PORKY" LANG
Roger Gwok Chun On - SO
Hung Yan Yan - CLUB FOOT
Jean Wang Ching-Ying - COUSIN MAY
Lau Shun - WONG KEI YING (WONG FEI HUNG'S FATHER)
Elaine Lui Siu Ling - YING

I think LAU SHUN played WONG KAY YING in all the films of ONCE UPON A TIME IN CHINA in which he appears, but I'm not sure...

Updated.