Liu Xuan

Chao Deng

Mermaid Shan

Lin Yun

Brother Eight

Show Lo

Ruolan

Zhang Yuqi

Li Ruolan

Yuqi Zhang

Shan

Yun Lin

Uncle Rich

Tsui Hark

Constable Mo

Wen Zhang

Long Jianfei

Kris Wu

Constable Mr. Shi

Sheung-ching Lee

Constable Shi

Lee Sheung-Ching

Mr. Liao

Zhengyu Lu

Mr. Liao

Lu Zhengyu

Mermaid Long

Chi Ling Chiu

Mermaid Long

Chiu Chi-Ling

Mermaid

Zhang Mei'e

Liu Xuan's Bodyguard

Gao Shuang

George's Assistant

Linah Matsuoka

Mermaid

Barbie Liu

George's Assistant

Xu Zhenzhen

Museum Visitor

White-K

Museum Visitor

Kong Lianshun

Museum Visitor

Tenky Tin Kai-Man

Mermaid Fat

Wilson Chin Kwok-Wai

Technician

Lam Tze-Chung

Mermaid Fat

Wilson Chin

Cheng

Zheng Jifeng

Mermaid Shitai

Fan Shuzhen

Dr. George

Ivan Kotik

Mermaid Shitai

Fan Shu-Zhen

Auctioneer

Pierre Bourdaud

Curator

Yang Neng

Curator

Yeung Lun

Courier

Sun Jialing

Courier

Sun Jia Ling

Reporter

Kabby Hui

Ruo-Lan's Assistant

Li Ye-Qing

Office Lady

Zeng Yilian

Reporter

Kabby Hui Nga-Ting

Party Guest

Zhou Shuai

Party Guest

Zhao Fanghua

Bald Merman

Zhang Aiqin

(Voice)

Bobby Yip Kin-Sang

Chicken King

Ning Xiaohua

Gunner

Zhang Zhihan

Mermaid

Zhang Xiaoming