| Person | Type | Job | Role(s) |
|---|---|---|---|
 David M. Richardson | Crew | Editing | Editor |
 Johnnie To | Crew | Directing | Director, Producer |
 Yau Nai-hoi | Crew | Production | Producer, Screenplay |
 Cheng Siu-keung | Crew | Camera | Director of Photography |
Xavier Jamaux | Crew | Sound | Music |
 Lau Ho-leung | Crew | Writing | Screenplay |
Allen Leung | Crew | Editing | Editor |
 Peter Lam Kin-Ngok | Crew | Production | Executive Producer |
Mak Tin-Shu | Crew | Writing | Screenplay |
 Chiu Chi-Shing | Crew | Production | Unit Manager |
To Hung-Mo | Crew | Camera | Director of Photography |
Ahong Cheung | Crew | Art | Production Design, Costume Design |
 Gong Yu | Crew | Production | Executive Producer |
MJ Chan | Crew | Crew | Stunts |
Suk-Yin Lui | Crew | Costume & Make-Up | Makeup Artist |
Yiu Tong Vincent Fung | Crew | Sound | Sound Recordist |
Pekkle Sham Lai-Ting | Crew | Sound | Sound Recordist |
Johnnie To | Cast | Actor | Wong Superintendent (voice) |
 Louis Koo | Cast | Actor | Chief Inspector Ken |
 Michael Tse | Cast | Actor | Gangster |
 Raymond Wong Ho-Yin | Cast | Actor | Gangster |
 Eddie Cheung | Cast | Actor | Dr. Fok |
 Stephen Au Kam-Tong | Cast | Actor | Tong (Sergent) |
 Lam Suet | Cast | Actor | Fatty (Constable) |
 Wallace Chung | Cast | Actor | Shun (Gangster) |
 Zhao Wei | Cast | Actress | Dr. Tong Qian |
 Mimi Kung | Cast | Actress | Advance Practice Nurse |
 Vincent Sze | Cast | Actor | Gangster |
 James Kazama | Cast | Actor | A&E Resident |
 Sire Ma | Cast | Actress | Journalist |
 Jonathan Wong | Cast | Actor | Hung (Patient) |
 Kathy Wu | Cast | Actress | Nurse |
 Timmy Hung | Cast | Actor | Chak (Patient) |
 Cheung Kwok-Keung | Cast | Actor | Mr. Ng (Patient) |
 Chim Bing-Hei | Cast | Lee (Senior Inspector) | |
 Lo Hoi-pang | Cast | Actor | Chung (Patient) |
Tina Shek | Cast | Actress | Nurse |
 Benjamin Yeung | Cast | Actor | Radiologist |
 Bryant Mak | Cast | Actor | CID |
 Mickey Chu | Cast | Actor | Dr. Steven Chow |
Chow Tsz-Lung | Cast | Actor | Radiographer |
La Ying | Cast | Patient | |
 Raymond Chiu | Cast | Actor | Anesthesiologist |
 Pancy Chan Pui-Sze | Cast | Actress | Nurse |
 Aaron Chow Chi-Kwan | Cast | Actor | CID |
 Helen Tam Yuk-Ying | Cast | Actress | Mrs. Ng |
 Kevin Chu | Cast | Actor | CID |
Leung Han-Yuan | Cast | Actor | Journalist |
Chiu Man-Tung | Cast | Actor | Dr. Alex Tsang |
Margiela Kwok | Cast | Actress | ICU Resident |
Hedi He Guoxuan | Cast | Actor | Yeung (Constable) |
Ivy Pang | Cast | Actress | Accident & Emergency Department Nurse |
| Person | Type | Job | Role(s) |
