Wait 'Til You're Older

A troubled boy who seeks escape becomes a man through a miraculous growth formula but encounters a new troubles when the formula won't quit.

Andy Lau

Kwong

Karen Mok

Tsui Man

Lam Ka-tung

Vice Principal

Felix Wong

Chan Man

Cherrie Ying Choi-Yi

Miss Lee

Feng Xiaogang

Vagabond in park

Howard Sit Lap-Yin

Kwong Kid

Li Bingbing

Kwong's Mum

Nicola Cheung

Miss Wong

Kristal Tin

Policewoman

Chapman To

Policeman

Chim Pui-Ho

Bear

Jacky Wong Shu-Hei

Billy

Simon So

Jack

Joe Cheung Tung-cho