Wang Chung as John Sum / Shen Chang

Lily Li as Elaine / Huang Lan

Betty Pei Ti as Fanny

Lu Ti as Mr. Sum (Shen)

Tung Lam as Boss Lam

Fan Mei-Sheng as Big Sean

Wang Kuang-Yu as Big Sean's Gangster

Dean Shek Tin as Cripple

Shum Lo as Butcher (Stepfather)

Chan Chuen as Top Fighter at Martial Arts School (uncredited)

Chan Dik-Hak as Rascal at Basketball Court (uncredited)

Chan Siu-Kai as Big Sean's Gangster (uncredited)

Chik Ngai-Hung as Big Sean's Gangster (uncredited)

Danny Chow Yun-Kin as Lam's Bodyguard (uncredited)

Chui Fat as Rascal at Basketball Court (uncredited)

Chui Kin-Wa as Big Sean's Gangster (uncredited)

Fung Ging-Man as Food Stall Boss (uncredited)

Fung Hak-On as Lam's Bodyguard (uncredited)

Gam Tin-Chue as Store Clerk (uncredited)

Goo Chim-Hung as (extra) (uncredited)

Ho Bo-Sing as Big Sean's Gangster (uncredited)

Hsu Hsia as Big Sean's Gangster (uncredited)

Huang Pei-Chih as Big Sean's Gangster (uncredited)

Ricky Hui Koon-Ying as Student at Martial Arts School (uncredited)

Kong Chuen as Big Sean's Gangster (uncredited)

Queenie Kong Hoh-Yan as Elaine's Friend (uncredited)

Kwan Yan as Onlooker on Beach (uncredited)

Anna Kwok On-Na as Elaine's Friend (uncredited)

Lai Yan as Big Sean's Gangster (uncredited)

Wynn Lau as Student at Martial Arts School (uncredited)

Law Keung as Big Sean's Gangster (uncredited)

Lee Chiu as Rascal at Basketball Court (uncredited)

Max Lee Chiu-Chun as Rascal at Basketball Court (uncredited)

Lee Hang as Big Sean's Gangster (uncredited)

Lee Sau-Kei as Police Officer (uncredited)

Li Chun-Chieh as Prostitute (uncredited)

Michelle Yim as Elaine's Friend (uncredited)

Ng Yuen-Fan as Big Sean's Gangster (uncredited)

San Kuai as Student at Martial Arts School (uncredited)

Tam Bo as Big Sean's Gangster (uncredited)

Tang Tak-Cheung as Rascal at Basketball Court (uncredited)

Wan Fat as Rascal at Basketball Court (uncredited)

Johnston Wong Chan-Sin as Student at Martial Arts School (uncredited)

Tino Wong as Lam's Bodyguard (uncredited)

Wong Ching as Big Sean's Gangster (uncredited)

Wong Shu-Tong as Big Sean's Gangster (uncredited)

Yen Shi-Kwan as Lam's Bodyguard (uncredited)

Yuen Shun-Yi as Rascal at Basketball Court (uncredited)