I think they are the same person and I will merge them in 15 days if nobody stops me

楊證華 / (Yeung Ching-Wa) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
楊證樺 / (Yeung Ching-Wa) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng

merged:

Yeung Ching-Wa
Actor
Return to Dark (2000)

and

Yeung Ching-Wa
Actor
Take Five (1998)
Ungrateful Tink (1999)
A Wicked Ghost II: The Fear (2000)
Bloody Cops (2001) ... coroner
Hit Team (2001)