Nick Cheung Ka-Fai

Blue

Louis Koo

Shiu Chi-Long

Francis Ng Chun-Yu

Q-Sir / Inspector Q

Charmaine Sheh Sze-Man

Ding Siu-Ka

Benz Hui Siu-Hung

Foon Hei-Gor

Moses Chan Ho

Police Superintendent

Louis Cheung

Triad Member

Clara Lee

Assassin

Li Guangjie

Tung Pak-Ho

Zhang Huiwen

Siu Ying, Blue's Bodyguard

Xing Yu

Sniper

Cheng Taishen

Kwok Ming

Lo Hoi-Pang

Triad Member

Bob Lam Shing-Ban

Ferrari Owner

Timothy Cheng Chi-Sing

Lam Tung Yau

Jade Leung Tsang

Karina

Jimmy Au Shui-Wai

Hong Sir

Rebecca Zhu Chenli

Samantha, CIB Detective

Stefan Wong Cheung-Hing

CIB Detective

Grace Wong

CIB Detective

Hugo Wong

Shiu Chi-Long's Subordinate

Océane Zhu

CIB Detective

William Chak

Ng Pak

Sammi Cheung

CIB Detective

Choi Kwok-Hing

Triad Member

Ken Law Ho-Ming

Lam Bok-Man's Bodyguard

Jerry Leung Ho-Kai

Lam Bok-Man's Bodyguard

Ben Yuen Foo-Wah

Triad Member

Alice Fung So-Bor

Auntie Mui

Michael Wai Chi-Ho

Cocktail MC

Cheung Lap-Fung

Assassin in Sauna

Keira Wang

Mandy

Fung Hong-Ling

Banker

Leo Lai Yat-Nam

Restaurant Manager

Kevin Tong

Peter, IT Manager

Carlos Koo

Bank Client

Benjamin Wong Chi-Kong

Ma Sir

Vernon Fong

Interrogation Room Policeman

Ho Chun-Hin

Interrogation Room Policeman