| Person | Type | Job | Role(s) |
|---|---|---|---|
 Vincent Kok | Crew | Directing | Director, Writer |
 Eric Tsang | Cast | Actor | Kwok Tinyau |
 Francis Ng | Cast | Actor | Diagnosed carrier |
 Hacken Lee | Cast | Actor | |
 Jackie Chan | Cast | Actor | Supervisor of the Epidemic Prevention Operation Unit |
 Julian Cheung | Cast | Actor | Chai Yau |
 Lam Ka-tung | Cast | Actor | Diagnosed carrier |
 Chin Ka-Lok | Cast | Actor | Head of security of Grande Hotel / President's assistant |
 Ken Lo | Cast | Actor | |
 Ken Wong | Cast | Actor | |
 Kent Cheng Jak-Si | Cast | Actor | |
 Helena Law Lan | Cast | Actress | Service staff |
 Louis Koo | Cast | Actor | Captain of the Epidemic Prevention Operation Unit |
 Michael Hui | Cast | Actor | President of Grande Hotel |
 Candice Yu | Cast | Actress | Kwok Tin Yau's wife |
 Pinky Cheung | Cast | Actress | |
 Sam Lee | Cast | Actor | Security manager of Grande Hotel |
 Stephanie Che | Cast | Actress | |
 Cheung Tat-Ming | Cast | Actor | Chu Chu's father |
 Tony Leung Ka-fai | Cast | Actor | Yam Yankau |
 Annie Liu | Cast | Actress | |
 Fiona Sit | Cast | Actress | Service staff of Grande Hotel |
 Yuen Qiu | Cast | Actress | |
 Carlos Chan Ka-Lok | Cast | Actor | Manager of Grande Hotel |
 Chrissie Chau | Cast | Actress | |
 Gregory Charles Rivers | Cast | Actor | |
 Raymond Wong | Cast | Actor | |
 Cecilia So | Cast | Actress | |
 Michael Ning | Cast | Actor | Ting Tszchung |
 Larine Tang Yue-Ping | Cast | Actress | |
 Alex Fong Lik-Sun | Cast | Actor | Diagnosed carrier |
 Louis Cheung | Cast | Actor | Triad leader / Chai Yau's rival |
 Alex Lam Tak-Shun | Cast | Actor | |
 Philip Keung Ho-Man | Cast | Actor | |
 Cheung Kwok-Keung | Cast | Actor | |
 Samuel Pang | Cast | Actor | |
 Billy Luk | Cast | Actor | Chu Chu's fiancé |
 Max Cheung | Cast | Actor | |
 Mary Hon Ma-Lee | Cast | Actress | |
 Ng Wing-sze | Cast | Actress | |
| Person | Type | Job | Role(s) |
