According to Lam Git Lung's entry, he's Mike Lambert... who has his own entry:

http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng

I am 99,44 % sure you are right. According to WebPAC, Lam Git Lung is in the cast of "Armaggedon", which we have credited to Mike Lambert...

Merge performed. Further confirmation - IMDB has Mike Lambert in Cheap Killers, the only entry we have (had) for Lam Git Lung.