Alexander Fu Sheng as Bai Yu Tong, Rat

Adam Cheng Siu-Chow as Jien Chiu (Royal Cat)

Hsiao Ho as Cheung Ping, Water Rat

Kara Wai Ying-Hung as Jien Yu Lan

Gordon Liu Chia-Hui as Emperor Yang Xi

Lau Kar-Wing as Master Si Da Fu

Cheung Chin-Pang as Sky Rat

Lydia Shum Tin-Ha as Bai's Mother

Lung Tien-Hsiang as Shui Sheung Piu

Wilson Tong as Thief

Johnny Wang Lung-Wei as Pierce Mountain Rat

Wong Ching-Ho as Minister Huang

Sek Gong as Emperor's Bodyguard

Hsiao Yu as Emperor's Bodyguard

Lam Fai-Wong as Chan Jien

King Lee King-Chu as Ground Rat

Chan Kwok-Keung as (extra) (uncredited)

Chan Ming-Wai as Chiu's Servant (uncredited)

Cheung Kwok-Wah as Executioner (uncredited)

Cheung Lin-Ping as (extra) (uncredited)

Choi Kwok-Keung as (extra) (uncredited)

Chu Kai as (extra) (uncredited)

Fung Ming as Court Offical (uncredited)

Kei Ho-Chiu as Emperor's Bodyguard / Tong's Servant (uncredited)

Kong Long as (extra) (uncredited)

Lam Hak-Ming as Emperor's Bodyguard / Chiu's Servant (uncredited)

Liu Hok-Ming as Tong's Servant (uncredited)

Mak Wai-Cheung as Emperor's Bodyguard / Chiu's Servant (uncredited)

Ng Kit-Keung as (extra) (uncredited)

Jackson Ng Yuk-Sue as Emperor's Bodyguard / Chiu's Servant (uncredited)

San Sin as (extra) (uncredited)

Wan Seung-Lam as Tong's Servant (uncredited)

Yeung Sai-Gwan as Emperor's Bodyguard / Tong's Servant (uncredited)

Yeung Wah as Emperor's Bodyguard / Tong's Servant (uncredited)