| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bruce Yu | Crew | Art | Production Design |
 Chan Hing-Kai | Crew | Writing | Writer |
Ivy Kong Yuk-Yee | Crew | Writing | Writer, Producer |
 Cheung Ka-Fai | Crew | Editing | Editor |
Lee Pik-Kwan | Crew | Costume & Make-Up | Costume Designer |
 Stephen Chow Sing-Chi | Crew | Directing | Director, Executive Producer, Writer |
Choi Sung-Fai | Crew | Camera | Director of Photography |
Raymond Wong Ying-Wah | Crew | Sound | Music |
 Andrew Fung Chih-Chiang | Crew | Writing | Writer |
 Zhao Haicheng | Crew | Production | Producer |
Raymond Chan Kam-Ho | Crew | Art | Art Direction |
Laura Calvo | Crew | Crew | Makeup Effects |
Jack Tang Man-To | Crew | Editing | Editor |
Tsang Kan-Cheong | Crew | Writing | Writer |
Si-Cheun Lee | Crew | Writing | Writer |
 Ren Zhonglun | Crew | Production | Co-Executive Producer |
Ho Miu-Kei | Crew | Writing | Writer |
 Lu Zhengyu | Crew | Writing | Writer |
 Yang Wei | Crew | Production | Co-Producer |
Wendyz Zheng | Crew | Sound | Music |
La Peikang | Crew | Production | Executive Producer |
Yuan Cai | Crew | Production | Co-Executive Producer |
 Ku Huen-Chiu | Crew | Directing | Action Director |
Cuson Liu Ka-Man | Crew | Sound | Sound Designer |
Han Tae-jung | Crew | Visual Effects | VFX Supervisor |
 Tian Tian | Crew | Production | Producer |
 Tsui Hark | Cast | Actor | Uncle Rich |
 Chiu Chi-Ling | Cast | Actor | Mermaid Long |
 Tenky Tin Kai-Man | Cast | Actor | Museum Visitor |
 Lam Tze-Chung | Cast | Actor | Technician |
 Deng Chao | Cast | Actor | Liu Xuan |
 Kitty Zhang Yuqi | Cast | Actress | Ruolan |
 Pierre Bourdaud | Cast | Actor | Auctioneer |
 Show Lo | Cast | Actor | Brother Eight |
 Wilson Chin | Cast | Actor | Mermaid Fat |
 Ivan Kotik | Cast | Actor | Dr. George |
 Kabby Hui | Cast | Actress | Reporter |
 Kris Wu | Cast | Actor | Long Jianfei |
 Lin Yun | Cast | Actress | Mermaid Shan |
 White-K | Cast | Actor | Museum Visitor |
 Wen Zhang | Cast | Actor | Constable Mo |
 Eddie Yeung Lun | Cast | Actor | Curator |
 Lee Sheung-Ching | Cast | Actor | Constable Shi |
Lu Zhengyu | Cast | Actor | Mr. Liao |
 Kong Lianshun | Cast | Actor | Museum Visitor |
 Mei'e Zhang | Cast | Actress | Mermaid |
 Linah Matsuoka | Cast | Actress | George's Assistant |
 Barbie Liu | Cast | Mermaid | |
 Xu Zhenzhen | Cast | Actress | George's Assistant |
Zheng Jifeng | Cast | Actor | Cheng |
 Shuzhen Fan | Cast | Actress | Mermaid Shitai |
 Sun Jialing | Cast | Actress | Courier |
 Li Ye-Qing | Cast | Actress | Ruo-Lan's Assistant |
 Gao Shuang | Cast | Actor | Liu Xuan's Bodyguard |
 Zeng Yilian | Cast | Actress | Office Lady |
 Zhang Aiqin | Cast | Actor | Bald merman |
 Zhou Shuai | Cast | Actor | Party Guest |
| Person | Type | Job | Role(s) |
