I am confident that the 2nd chess player is Wong Wing Sang.
Magic Blade http://hkmdb.com/db/movies/view.mhtml?i ... ay_set=eng
Ng Hong Sang http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
Wong Wing Sang http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
Had the immense pleasure of watching Magic Blade on SBS last night

Please do the update for me, after a decent interval for discussion/dissension.