Crime Story: Character ID?

[Markgway]

I'd like to be able to match the actors to the parts they play.

Their names are in the credits, but I didn't recognise faces.

Chris Chan Sai-Tang
Nicky Lee Chung Chi
Lam Tak Sing
Yue Kwok Lok
Chu Bak Woo

Additionally Cinemagic lists the following though they're not on the film credits.

Chan Tat Kwong (NOT Stephen Chan Tak-Kwong)
Wong Chi Wai

Thanks to anyone who can help...