Got most thanks to some nicely detailed credits with roles, but not sure about some and could do with confirmation. And I'm totally clueless about others

1. Should be Mr Chu = Lee King Chue? But doesn't look like him?


2. Thought it was Bruce Leung Siu Leung, but must be Yeung Sai Gwan? + ? + ?


3. Lin Ke Ming?


4. Casino worker


5.


6. Gordon and San Sin?


7. Wilson Tong & ? & ? & ? & ?


8. Students


9. The librarian is Lam Wai (1)? Wouldn't have recognised him as the sworsdman in A Chinese Ghost Story :p


10. Some chiefs (chieves?)


11.


12.


13. Big dude... Yeung Hung (1)?


14. Gordon & Cheung Chin Pang in the background, but who are the monks in formation?


15. Cops


16. More cops


There's a few more background extras at the images page...

http://hkmdb.com/db/movies/images.mhtml?id=8977&display_set=eng