Shu Qi

Ai Lin / Lynn

Vicky Zhao

Ai Quan / Sue

Karen Mok Man-Wai

Kong Yat Hung

Song Seung-heon

Yen

Yasuaki Kurata

Master

Michael Wai Chi-Ho

Ma Siu Ma

Deric Wan

Chow Nunn

Josephine Lam Kei-Yan

Alice Chow

Shek Sau

Chow Lui

Josie Ho

Ching

May Kwong Man-Chun

May

Henry Fong Ping

Lynn's Father

Nina Paw Hei-Ching

Lynn's Mother

Kam Hing-Yin

Captain

Ben Lam Kwok-Bun

Ben

Ricardo Mamood-Vega

Peter

Tats Lau Yee-Tat

Ghost King

Lam Sheung-Mo

Lai Kai-joe

Wong So-Bik

May

Leo Ku

Man in Lift

Leon Head

Benevolent Killer of Lynn's Parent (flashback)

Jude Poyer

Killer of Lynn's Parent (flashback)

David John Saunders

Killer of Lynn's Parent (flashback)

Dave Taylor

Killer of Lynn's Parent (flashback)

Ben Yuen Foo-Wah

Mr Yeung

Huang Kaisen

Wong Fat Chi/Armed Robber in Lift

Jiang Ke-Cheng

Lee Hong Fai/Elevator Killer

John Cheung Chan-Sang

Policeman

Kong Fu-Keung

Robber

Kenji Tanigaki

Hitman

Adam Chan Chung-Tai

Hitman

Lee Ga-Hung

Hitman/Bodyguard (uncredited)

Johnnie Guy

Conference Chairman (uncredited)

Kam Loi-Kwan