"A disgraced former Kung Fu expert makes a living as a merchant with the help of a hot headed friend. When the men are harassed by gangsters, the merchant decided to teach his friend monkey boxing so they can defend their business."
Lau Kar-Leung
as Uncle Chan
Hsiao Ho
as Little Monkey
Lo Lieh
as Duan Shiangyuan
Kara Wai Ying-Hung
as Chan Tsuei Hung
Lam Fai-Wong
as Choi
Lam Hak-Ming
as Fok
San Sin
as Tien
Wong Ching-Ho
as Duan's Accountant
Wong Man
as Duan's Mistress
Cham Siu-Hung
as Duan's Thug (uncredited)
Chan Kwok-Keung
Chan Ling-Wai
as Duan's Thug in Brothel (uncredited)
Chan Ming-Wai
Cheung Hei
as Teahouse Customer (uncredited)
Cheung Wing-Hon
as Green Dragon (Duan's Thug) (uncredited)
Mama Hung
as Hooker (uncredited)
Chow Gam-Kong
Chu Kai
Fong Yue
Fung Ming
as Opera Staff (uncredited)
Gam Tin-Chue
as Peasant (uncredited)
Ho Bo-Sing
as Ah Hoi (uncredited)
Ho Chi-Wai
as White Dragon (Duan's Thug) (uncredited)
Ho Kei-Cheong
Lam Wah
Lau Chun
as Waiter (uncredited)
Lee Fat-Yuen
King Lee King-Chu
Nam Wai
as Sang, Duan's Thug (uncredited)
Ng Kit-Keung
as Biao, Duan's Thug (uncredited)
Pang Yun-Cheung
Sai Gwa-Pau
To Wing-Leung
as Opera Spectator (uncredited)
Wang Han-Chen
as Teahouse Owner (uncredited)
Yeung Wah
Director
Chiang Hsing-Lung
Editor
Martial Arts Choreographer
Ni Kuang
Screenplay
Run Run Shaw
Producer
Huang Pa-Ching
Assistant Director
Lee Tai-Hang
Chow Jan-Wing
Script Supervisor
Arthur Wong Ngok-Tai
Director of Photography
Chan Fen
Gaffer
Yuen Teng-Bong
Johnson Tsao Chuang-Sheng
Art Direction
Liu Chi-Yu
Costume Design
Wu Hsu-Ching
Makeup Artist
Peng Yen-Lien
Hairstylist
Lee Yim-Hoi
Lai Yu
Props
Wong Kwok-Wai
Tsui Ping-Kwong
Sound Recordist
Lawrence Wong Ka-Hay
Production Manager
Mona Fong Yat-Wah
Eddie H. Wang Chi-Ren
Original Music Composer