http://hkmdb.com/db/movies/images.mhtml ... ay_set=eng (First ID of Prominent Role: Chan Hung-Gaai)
Those Girlfriends all are headache (hope no mistake) But Na Na doesn't fit any of those IMO - but if most likely as Lou's Girlfriend...
Anyhow I suspect that some roles and pictures of Na Na (1) are mixed up with Anna Ho Na-Na (We maybe need to sort out some)
still I missed Gam Biu and Chai Lam (maybe very little cameos?) And now: Who are: Fong Wai-Ji and Leung Ban?

Changed only the ID of "Unknown SB-Actress (2)".

I added most of the cast a few years ago.