Sammo Hung Kam-Bo as Kidstuff / Fastbuck

Jackie Chan as Muscles

Yuen Biao as Ricky

Eric Tsang Chi-Wai as Roundhead / Blockhead

Richard Ng Yiu-Hon as Sandy

Charlie Chin Chiang-Lin as Herb

Stanley Fung Shui-Fan as Rawhide

Sibelle Hu Hui-Chung as Swordflower / Chief Insp. Barbara Wu

Walter Tso Tat-Wah as Senior Superintendent Tsao

James Tien Chun as Prison Warden

Lam Ching-Ying as Corrupted HK Policeman

Bolo Yeung Sze as Millionaire Chan

Lau Nga-Lai as Mrs Millionaire Chan

Law Ho-Kai as Dentist

Tai San as Prisoner 6377

San Kuai as Prisoner 5734

Huang Ha as Prisoner 7181

Fruit Chan as Card Player

Dick Cho as Cards Player

Yeung Yau-Cheung as Card Player

Teddy Yip Wing-Cho as Mental Patient

Billy Lau Nam-Kwong as Mental Patient

Ka Lee as Mini Bus Driver

Yu Chi-Ming as Mini Bus Driver

Teresa Ha Ping as Ping (Tsao's Wife)

Paul Chang Chung as Chief of Scarecrow Club

Michiko Nishiwaki as Chief's Sidekick

Dick Wei as Chief's Sidekick

Lau Kar-Wing as Chief's Sidekick

Yuen Miu as Chief's Thug

Lee Chi-Kit as Chief's Thug

Chin Ka-Lok as Chief's Thug

Chow Gam-Kong as Chief's Thug

Siu Tak-Foo as Chief's Thug

Wong Ka-Leung as Chief's Thug

Pang Yun-Cheung as Chief's Thug

Lung Ying as Chief's Thug

Wong Kim-Bun as Chief's Thug

Johnny Cheung Wa as Chief's Thug

Chow Kong as Chief's Thug

Wellson Chin Sing-Wai as Chief's Dumb Thug

Yuen Wah as Chief's Thug at Amusement Park

Chu Tau as Mini Bus Driver

Cheung Wing-Hon as Mini Bus Driver

Ng Hoi-Tin as Bank Manager

Wu Ma as (scenes cut) (uncredited)

Woo Wing-Tat as Chief's Thug

Sam Feng-San as Chief's Thug

Ho Chi-Wai as Chief's Thug

Ku Huen-Chiu as Chief's Thug