Nicholas Tse Ting-Fung as Inspector Tide Yau

Stephen Fung as Wind Fung

Law Kar-Ying as Paper Chan

Rain Lee Choi-Wah as Rain

Sam Lee as Sam

Danielle Graham as Nurse Danielle

Alex Fong Lik-Sun as Water Ghost

Lee Lik-Chi as Police Precinct Head Tang

Vincent Kok Tak-Chiu as Rain's doctor

Hau Woon-Ling as Grandmother Four

Joe Lee Yiu-Ming as Head of 2002 unit

Joe Cheng Cho as Police Precinct Head

Chim Wah-Leung as Police Officer Kau

Jimmy Fu Git-Ming as

Natalie Tong as Female Student

Andy Tsang Tak-Wah as Gambler ghost

Terence Tsui Chi-Hung as Muscle ghost

Tam Wai-Ho as Siu Ho

Poon An-Ying as Paper Chan's customer

Chow Lim-Kan as

Anya as Fire Ghost