Andy Lau as Andy

Sean Lau Ching-Wan as Mahjong Master

Louis Koo as Tin-lok

Gigi Leung Wing-Kei as Gigi

Cherrie Ying Choi-Yi as Cherrie

Wong Tin-Lam as Fat Uncle

Bonnie Wong Man-Wai as Andy's Mother

Matt Chow Hoi-Kwong as Mahjong Player at the Medicine Shop

Jimmy Wong as Mahjong Player at the Medicine Shop

Four Tse Liu-Shut as Mahjong Player Who Helps Gigi

Angela Tong Ying-Ying as Mahjong Player Who Helps Gigi

Lung Tin-Sang as Fat Uncle's Man

Yuen Ling-To as Fat Uncle's Man

Hung Wai-Leung as Fat Uncle's Man

Hau Woon-Ling as Mrs. Wong

Poon An-Ying as Mahjong Player

Nishikawa Takakazu as Contest Sponsor

Tam Tin-Bo as Mahjong Player with Twisted Neck

Chin Yiu-Wing as Mahjong Player

Alex Lee Yip-Kin as Insolvency Officer

Lai Chi-Wai as Insolvency Officer

Simon Yu Sai-Tang as Mahjong Player at the Medicine Shop