Reparto
劉青雲
Inspector Song Donglu
謝霆鋒
Captain Guo Zhui
Yang Mi
Little Skylark
吴刚
Police Chief Jin
井柏然
Xiaowu
高虎
NPA senior officer
江一燕
Fu Yuan
錢嘉樂
Wu Zhongguo
鄭希怡
Li Jia, forensic doctor
王杍逸
Wang Hai
阮德鏘
Nan Cheng
江道海
Mr Huang, Sulfur manufacturer