Line Walker

Nick Cheung

Blue

(Acting)

Louis Koo

Shiu Chi-Long

(Acting)

Francis Ng

Q sir/Inspector Q

(Acting)

Charmaine Sheh

Ding Siu-Ka

(Acting)

Hui Siu-Hung

Foon Hei-Gor

(Acting)

Li Guangjie

Tung Pak-Ho

(Acting)

Zhang Huiwen

Siu Ying

(Acting)

Xing Yu

sniper / assassin

(Acting)

Cheng Taishen

Kwok Ming

(Acting)

Moses Chan

Police superintendent

(Acting)

Louis Cheung

Guy blocking Blue at meeting

(Acting)

Clara Lee

Assassin

(Acting)

Ben Yuen

Uncle Heen

(Acting)

Choi Kwok-Hing

Master Fung

(Acting)

Jade Leung

Karina

(Acting)

Rebecca Zhu

Samantha, CIB detective

(Acting)

Jimmy Au Shui-Wai

Hong Sir

(Acting)

Timothy Cheng

Lin Dongyou

(Acting)

Jason Wong

Kwok Ming's thug

(Acting)

Phat Chan Fei

(Acting)

Lo Hoi-pang

(Acting)