Kwok Man Bun / Zero / Kwok Man Shing

May Chou

Wong Sir

Lee Wai Lam

Kevin

Ma Tong Tat

James

Lau Chi Wai

Chor Hei

Director of the Orphanage

Peter

Lawyer

Collin

Wang Zhe

Paw Yu Ming

May's Father

Siu Wan

May Chou's Mother

Nurse Chan

Undead Nurse

Kwok's Father