I think Pang Yin Cheung

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

could be a alias of Peng Kong

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

Peng Kong is in "Dragon Fists" and "Wild Panther" but his name is not in the cast lists. Pang Yin Cheung is in the cast lists.
I think Peng Kong is also in "Fearless Hyena" (last image at image gallery?) with Pang Yin Cheung listed.

I don't want to merge the two names before I hear other opinions or find more proof.

Peng Kong is in all four movies with the Pang Yin-Cheung name in the cast list.

If nobody objects I merge Pang Yin-Cheung with Peng Kong in a few days.

Done.