Dirección: Jackie Chan
Shing Lung (Jackie Chan) pasó toda su niñez aprendiendo el estilo secreto de Kung Fu de su abuelo. Su abuelo siempre lo advirtió de mantener el secreto del arte, pero Lung nunca rechazaba una pelea, lo que originó desastrosos resultados.
Jackie Chan
Chan
田俊
Chen Peng-fei
任世官
Yen Chuen Wong
石天
Undertaker
李昆
Tee Cha
王圻生
One of Yen Chuen Wong's Men (uncredited)
Chen Hui-Lou
Unicorn (uncredited)
Ma Cheung
Iron Head (uncredited)
程天賜
Willow Sword (uncredited)
김영일
Chin Wa Li (uncredited)
Cheng Fu-Hung
Great Bear (uncredited)
Kim Se-Ok
(uncredited)
Ho Hing-Nam
(uncredited)
Chiang Long-Sheng
(uncredited)
Huang Gen-Wei
(uncredited)
徐沅
(uncredited)
Ting Hsiang
(uncredited)
謝健文
(uncredited)
彭剛
(uncredited)
Chu Shao-Hwa
(uncredited)
