• 
  Alannah Ong

  Yu Sum Liu
• 
  Harry Oram

  Lucas
• 
  Kalina Benhamou

  Ang
• 
  Nate Kan

  Inspector Mark Lo
• 
  Ashley Leung

  PC Ellie
• 
  Henry Tang

  PC Danny
• 
  Gary Brightman

  Mike Speaker
• 
  Shafin Azim

  Diandra

• 
  Lydia Lee Tang

  PC Pearl
• 
  Nicky Cheung

  Sergeant Dave Chan
• 
  Ellen Ng

  Ling Chan
• 
  Raymond Chan

  Man Hei
• 
  Callum Chan

  Alien 2
• 
  Yumi Bayanin

  Rose
• 
  Stan Chan

  PC Extra

• 
  Tsang Ning Chan

  Lucy
• 
  Bowie Chan Wing Wai

  Spike
• 
  Felix Chang

  PC Felix
• 
  Marcus Cheng

  Alien Guy