created this one: http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
extracted from bio: http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
(I suppose that will not be the same actor from 1952)
(Source is again Southern Screen Magazine 143 January 1970 page 156) Scan will follow later

Scan Link http://hkmdb.com/db/people/images.mhtml ... ay_set=eng

I checked TWELVE GOLD MEDALLIONS and I think the actor/fighter on the image is not Chan Kwok (he must be someone else on the cast page/in the movie). I think it's Chan Siu-Gai on the image (that character apppear on the massacre scene and does stunt work):

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

Don't know just found that face with no name yet and seems possible to me
BTW: http://hkmdb.com/db/movies/image_detail ... ay_set=eng = Tsui Oi-Sam ??

If no one objects I change the TWELVE GOLD MEDALLIONS ID of Chan Kwok. I'm confident it is Chan Siu-Gai on the movie image.