Somebody messed up these two actresses.
http://hkmdb.com/db/people/view.mhtml?id=7953&display_set=eng
http://hkmdb.com/db/people/view.mhtml?id=7005&display_set=eng

This is Ngai Suet

Jail House Eros


Saga of the Phoenix


The First Time is the Last Time


Ghost Ballroom




And this is Daan Gwai Chi

Vampire Kids


Angry Ranger


Ghost Ballroom



Besides I have strong feeling that Ngai Lau-Na (http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng) is Ngai Suet because Fai's sister from A Bloody Fight (http://hkmdb.com/db/movies/view.mhtml?i ... ay_set=eng) looks like this:








Besides I looked for Ngai Lau-Na at HKFA (http://ipac.hkfa.lcsd.gov.hk/ipac20/ipa ... EBRP#focus) and found there that Ngai Lau-Na was in Angel's Mission (http://hkmdb.com/db/movies/view.mhtml?i ... ay_set=eng) and Angel Enforcers (http://hkmdb.com/db/movies/view.mhtml?i ... ay_set=eng). At the HKMDB there are cast pictures for these movies and here she is:

Angel's Mission' Ngai Lau-Na


and

Angel Enforcers' Ngai Lau-Na


I think it's pretty obvious that in all the movies Ngai Lau-Na looks like a twin sister of Ngai Suet.