Sean Lau Ching-Wan
Inspector Song Donglu
Sean Lau Ching-Wan
Inspector Song Donglu
Nicholas Tse
Captain Guo Zhui
Yang Mi
Little Skylark
Wu Gang
Police Chief Jin
Jing Boran
Xiaowu
Gao Hu
NPA senior officer
Jiang Yiyan
Fu Yuan
Chin Ka-Lok
Wu Zhongguo
Yumiko Cheng
Li Jia, forensic doctor
Wang Ziyi
Wang Hai
Johnson Yuen Tak-Cheung
Nan Cheng
Benz Kong To-Hoi
Mr Huang, Sulfur manufacturer
Liu Kai-Chi
Mr Ding
Zhang Heng
Female reporter
Mandy Law-Huang
Producer
Teddy Robin
Original Music Composer
Silver Cheung
Production Design
Attis Lee Kin-Wai
Art Direction
Lo Chi-leung
Director
Lo Chi-leung
Writer
Yeung Sin-Ling
Writer
Derek Yee Tung-Sing
Producer
Chan Chi-Ying
Director of Photography
Eric Kwong Chi-Leung
Editor
Tommy Wai
Original Music Composer