999誰是兇手

Michael Chow Man-Kin

Inspector Ho Tin Lam

Hilary Tsui Ho-Ying

Jacky Wong

Timothy Shaw Chun-Yung

John

Ivy Leung Si-Man

Teresa Ha Ping

Yau's mother

Mikie Ng

Tang Mei Ping

Jay Lau Kam-Ling

Wah's wife

Liu Kai-Chi

Leung Chi Wah

Joyce Geung Yung

Lam's friend

Helena Law Lan

Jogger [cameo]

Shing Fui-On

Chan Fu

William Duen Wai-Lun

Inspector Ko