Legend of a fighter

[p.i.klein]

Lau Hok Nin in legend of a fighter is not an assistant; he's Fok Yun Gap's (Huo Yuan Chia) brother. There are two other brothers, but I couldn't ID them (never seen those faces before, I believe).
'Bucktooth' Yuen Jan Yeung is the assistant/servant of the Fok family (btw: they are called the Huo family on the HKL subs and Yasuaki Kurata is called Chiang Ho Shan).
On the HKL subtitles Lau Fong Sai is called Bulondo (Bu Lon Do?).