• 
  Kent Cheng

  regizor

• 
  Ekin Cheng

  Chi
• 
  Takeshi Kaneshiro

  Kenji
• 
  Christy Chung

  Wong Siu May, the mermaid
• 
  Dennis Chan

  Officer Chan
• 
  Kent Cheng

  Principal
• 
  Wai-Hung Fung

  Chi's Mom
• 
  Siu-Ming Lau

  Uncle Lau

• 
  Teresa Mak

  Princess (as Maggie Mak Ka Ki)
• 
  King-Tan Yuen

  Miss Yuen (as King Dan Yuen)
• 
  Lawrence Chau

  Groom
• 
  Tak-Juen On

  (as Ander Jun)
• 
  Suet-Ling Law

  Fatty