I moved "Matthew" into the romanised name of Wong Hing-Mung (1) and removed his number. I was going to remove the number from Wong Hing-Mung (2), but from the portrait image it's definitely the same guy that's in The Big Heat (i.e. Wong Hing-Mung (1), now Matthew Wong Hing-Mung).

http://hkmdb.com/db/people/view.mhtml?id=9306&display_set=eng
http://hkmdb.com/db/people/view.mhtml?id=6866&display_set=eng

Therefore, please merge

Okay, done.

Thanks.