I believe Chui Yi is him:

http://hkmdb.com/db/movies/image_detail ... ay_set=eng - Home of Hong Kong

http://hkmdb.com/db/movies/image_detail ... ay_set=eng - Possessed

http://hkmdb.com/db/movies/image_detail ... ay_set=eng - Possessed

and not her:

http://hkmdb.com/db/people/image_detail ... ay_set=eng - Home of Hong Kong

I did not see her in the movie.

Cd anyone confirm and update?