The Lunatics

Stanley Fung Shui-Fan

Dr. Tsui

Deanie Ip

Tina Lau

Paul Chun Pui

Tsuen

Dennis Chan Kwok-San

Ming

Chow Yun-Fat

Chung

Tony Leung Chiu-wai

Doggie

Season Ma

Teacher

John Shum Kin-Fun

Dr. Shum

Ma Suk-Jan

Crazy old woman

Lai Suen

Tsuen's mother

Lo Hung

Doctor examining Tsuen

Cheung Hei

Song's lunatic friend

Wan Seung-Lam

Zhao

Lui Hung

Customer of Zhao

Jeffrey Ho Wai-Lung

New husband of Tsuen's ex-wife

Ng Kwok-Kin

Policeman

Cho Yuen-Tat

Journalist

Tam Bo

Angry tenant