This is the common name thread for actor Hoi-Shan Kwan / Kwan Hoi Sang / Kwan Hoi-San / Kwan Hoi San / Kwan Hoi Shan / Kwan Hoi-Shan
CLT:
"Hoi-Shan Kwan" is credited in the following 26 titles (42 profiles)
"Kwan Hoi Sang" is credited in the following 8 titles (13 profiles)
"Kwan Hoi-San" is credited in the following 3 titles (3 profiles)
"Kwan Hoi San" is credited in the following 14 titles (41 profiles)
"Kwan Hoi Shan" is credited in the following 8 titles (9 profiles)
"Kwan Hoi-Shan" is credited in the following 7 titles (9 profiles)

Hoi-Shan Kwan (10 unconfirmed):
Yan bao fu / Bruce Le's Greatest Revenge / Way of the Dragon 2
So Hak-Yee / Heroes Among Heroes
Lat sau san taam / Hard Boiled
Ng yi taam jeung: Lui Lok juen / Lee Rock
'A' gai wak / Project A
'A' gai wak 2 / Project A Part II
Huang Fei Hong xi lie: Zhi yi dai shi / Martial Art Master Wong Fei Hong
7 jin gong / Wonder Seven
Shao Lin yu Wu Dang / Shaolin and Wu Tang
Da gung wong dai / Working Class

Kwan Hoi Sang (3 unconfirmed):
Lat sau san taam / Hard Boiled
'A' gai wak / Project A
'A' gai wak 2 / Project A Part II

Kwan Hoi-San (3 unconfirmed):
Ga yau hei si / All's Well Ends Well
Nam yi nui / Hong Kong, Hong Kong
Ng yi taam jeung: Lui Lok juen / Lee Rock

Kwan Hoi San (10 unconfirmed):
Dolaon solimsa jubangjang / Magnificent Natural Fist
Wu Lang ba gua gun / The 8 Diagram Pole Fighter
Lat sau san taam / Hard Boiled
'A' gai wak / Project A
'A' gai wak 2 / Project A Part II
Tin joek jau ching 2: Tin coeng dei gau / A Moment of Romance II
Sha shou hu die meng /  My Heart Is That Eternal Rose
Gau lung wong hau / Queen of Kowloon
Shao Lin yu Wu Dang / Shaolin and Wu Tang
Lin tai / The Siamese Twins

Kwan Hoi Shan (3 unconfirmed):
So Hak-Yee / Heroes Among Heroes
'A' gai wak 2 / Project A Part II
Huang Fei Hong xi lie: Zhi yi dai shi / Martial Art Master Wong Fei Hong

Kwan Hoi-Shan (4 unconfirmed):
Lat sau san taam / Hard Boiled
'A' gai wak 2 / Project A Part II
Shen Sheng Yi / The Roving Swordsman
Shao Lin yu Wu Dang / Shaolin and Wu Tang

'A' gai wak / Project A and
'A' gai wak 2 / Project A Part II

Both of them do not list the Asian names in western character set. But I could not get hands on a physical disc, so I can't tell, if there is anywhere outside the film some sort of credits.

7 jin gong / Wonder Seven: Kwan Shan Chinese / English language opening credits