Just watched it for the first time http://www.angelfire.com/az3/kitty/casta/bri.htm
and I am quite confident that unknown actor No. 2 is Chen Chin-Hai http://www.hkmdb.com/db/people/view.mht ... ay_set=eng

I think you are wrong. I watched BIG RISK and the actor looks different. Another fact is that Chen Chin-Hai was in no movies made in Hong Kong/Macau (in COUNTER ATTACK he is only in scenes made in Taiwan).