Eason Chan Yik-Shun as Cheng Kam Fu

Gillian Chung as 鄭詩慧（阿慧）

Stephy Tang Lai-Yan as 張可琪（阿琪）

Juno Mak as 飛鷹

Chet Lam as Band singer

Shawn Yue Man-Lok as Lok

Patrick Tam as 雜誌編輯

Edison Chen as Disco boy

Stephanie Cheng as Disco girl

Kenny Kwan Chi-Bun as Ah Chi

Jan Lam Hoi-Fung as KY

Chapman To Man-Chat as Chak

Chan Fai-Hung as Professor Chan

Lee Chi-Kin as Man in sexual fantasy

Tsang Lee as Woman in sexual fantasy

Conroy Chan Chi-Chung as 陳偉楊

Isabel Chan Yat-Ning as Wai Ying

AngelaBaby as 德雅

Zhang Zheng as 菲菲

Peter Kam Pau-Tat as 黃生

Feng Xiaogang as 殺手集團市場推廣主任

Kristal Tin Yui-Nei as Professor Chan's wife

Wan Chi-Man as 巡警 / 護衞員

Vincent Kok Tak-Chiu as （聲音演出）飾 老師

Poon Hang-Sang as 慧父

Hyper BB as 阿慧同學