• 
  Johnnie To

  regizor

• 
  Laurent Courtiaud

  scenarist

• 
  Andy Lau

  Cheung
• 
  Ching Wan Lau

  Inspector Ho Sheung-Sang
• 
  Shiu Hung Hui

  Chief Inspector Wong Kai-fat
• 
  Waise Lee

  Baldy
• 
  YoYo Mung

  Leung Yuen Ting
• 
  Suet Lam

  Suet, Baldy's Henchman

• 
  Ching Wan Lau

  Inspector Ho Sheung-Sang
• 
  Wai Leung Hung

  Building Caretaker
• 
  Sau Kei Lee

  Doctor
• 
  Ching Ting Law

  Elevator Cop
• 
  Wah Wo Wong

  Gardian
• 
  Ruby Wong

  Head of Interpol