http://hkmdb.com/db/movies/images.mhtml ... ay_set=eng
I think the cast has many actor's usually found in Wang Chung directed movies (such as: Informer, Mobfix patrol)
Hello folks, i just throw in some possible ID's:
1) Who is Yip Hoi-Kong (Has 19 credits already and still no portrait)
Maybe it is the very prominent part of Robert Mak's working colleague Gold hair" ?
http://hkmdb.com/db/movies/image_detail ... ay_set=eng
He can be found in Informer as Dirty Cash (San's gangster) and in Mobfix (cop) too
http://hkmdb.com/db/movies/image_detail ... ay_set=eng
http://hkmdb.com/db/movies/image_detail ... ay_set=eng

Prostitute Winnie in "OWO" could be Siao Hung (prostitute, again!) in Monkey Kung Fu
http://hkmdb.com/db/movies/image_detail ... ay_set=eng
http://hkmdb.com/db/movies/image_detail ... ay_set=eng

The second prostitute should be Moo Yuk-Fan probably in "Lost souls" (another "sexy" role)
http://hkmdb.com/db/movies/image_detail ... ay_set=eng
http://hkmdb.com/db/movies/image_detail ... ay_set=eng
http://hkmdb.com/db/movies/image_detail ... ay_set=eng