Anthony Wong
Alan Tam
Dolphin Chan Hoi-Hang
Dolphin / Shark
Parkman Wong Pak-Man
Officer Lee Sau
Lawrence Ng Kai-Wah
Wong Yu Yan, Anthropologist
Teddy Yip Wing-Cho
Dolphin's Dad
Dayo Wong Chi-Wah
Dr. Wong
Perrie Lai Hoi-San
Whale
Lee Chung-Wai
Lau Ching-Wan
Joe [cameo]
Chang Gan-Wing
Library Cleaner [cameo]
Herman Yau
Bobby Yip Kin-Sang
Wong Lap-Wai
Lee Man-Piu
