Nicholas Tse
Captain Guo Zhui
Liu Kai-Chi
Mr Ding
Jiang Yiyan
Fu Yuan
Chin Ka-Lok
Wu Zhongguo
Yang Mi
Little Skylark
Lau Ching-wan
Inspector Song Donglu
Wang Ziyi
Wang Hai
Wu Gang
Police Chief Jin
Jing Boran
Xiaowu
Gao Hu
NPA senior officer
Yumiko Cheng
Li Jia, forensic doctor
Johnson Yuen Tak-Cheung
Nan Cheng
Benz Kong To-Hoi
Mr Huang, Sulfur manufacturer
Zhang Heng
Female reporter