
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