• 
  Suanne Braun

   Lieutenant Commander Dotty (6 episodes, 2009)
• 
  Jeremy Bulloch

  Doctor Yul Striker
• 
  Claudia Christian

   Captain Belinda Blowhard (6 episodes, 2009)
• 
  Gene Foad

   Hologram (6 episodes, 2009)
• 
  Brad Gorton

   Commander William C Cropper (6 episodes, 2009)
• 
  Simon Lewis

   Reginald Montague Duck (6 episodes, 2009)
• 
  Rebecca Nichols

   Nurse Sandy Beach (6 episodes, 2009)
• 
  Sue Witheridge

   Daphne (6 episodes, 2009)

• 
  Rachel Grant

   Lieutenant Commander Wu Oof (6 episodes, 2009)
• 
  Keiran McGreevy

   Ensign Alan Hole (3 episodes, 2009)
• 
  Wayne Pilbeam

   Ensign Bull Ox (6 episodes, 2009)
• 
  Stephanie Jory

   Chief Engineer Sally Popyatopov (6 episodes, 2009)
• 
  Fiona Reynard

   Vilma Maureen Down (6 episodes, 2009)
• 
  Simon Gilvear

   The Reptid (6 episodes, 2009)
• 
  Jason Bailey

   Lieutenant commander Christian (6 episodes, 2009)