Tony Leung as Lau Ching-Hei

Takeshi Kaneshiro as Yau Kin-Bong

Shu Qi as Hung

Xu Jinglei as Susan Chow

Chapman To Man-Chat as Tsui Wing-Kwong

Vincent Wan Yeung-Ming as Uncle Man

Elliot Ngok Wah as Chow Yuen-Sing

Emme Wong Yi-Man as Rachel

Ricky Chan Po-Yuen as Lai Sun-Wah

Ankie Beilke as Spicy Girl

Geoffrey Wong Chi-Hung as Policeman

Shaun Tam Chun-Yin as Policeman

Monie Tung Man-Lee as Policewoman

Toby Leung Ching-Kei as Policewoman

Wayne Lai Yiu-Cheung as Chan Wai-Keung

Ben Yuen Foo-Wah as Wong Ming

Hoh Shu-Wing as Doorman at Wah's Flat

Hau Woon-Ling as Landlady of Seaside House

Ankie Lau as Rich Lady Client of Bong

Ava Yu Kiu as Beer Promoter

Chan Sze-Wai as Beer Promoter

Emotion Cheung Kam-Ching as Chan Wing-Fu

Elena Kong Mei-Yee as Chan Wing-Fu's Wife

Poon Cheuk-Ming as Old Doorman at Hei's Flat

Law Yiu-Fai as Bong's Informer

Toby Wong Chun-Lam as Gangster at Tea Cafe

Lee Tat-Chiu as Gangster at Pub

Ho Lin as Temple Master

To Siu-Chun as Temple Keeper Wai Shu

Bo Bo Chan Yee-Ting as Lau Ching Hei's Sister

Helen Suen Wai-Lin as Chan Wing Fu's Mother

Lam Kwok-Kit as Bodyguard

So Wai-Nam as Bodyguard

Jordon Ho Kwok-Nam as Mr Chow's Lawyer

Lee Ka-Wah as Broadband Technician

Tsui Kwai-San as Susan Chow's Doctor

Ken Ling Hiu-Wa as Rachel's Boyfriend

Chow Lim-Kan as Primary School Principal

Anna Ng as Sister Mace

David Choi Yuk-Lam as Convenience Store Staff

Dave Taylor as Undercover Policeman

Leung Ho-Ming as Restaurant Captain

Cheung Yuk-Wah as Sister in Orphanage

Ngai Leong as Young Lau Ching Hei

Hung On-Dik as Gangster at Tea Cafe

Lau Kar-Wing as Gangster at Tea Cafe

Mok Yiu-Kwun as Storekeeper