• 
  Andrew Sabiston

  Squirt
• 
  Samantha Reynolds

   Trolley (30 episodes, 2011-2013)
• 
  Alyson Court

   Queen Martha (US Edition) (13 episodes, 2011-2013)
• 
  Martin Roach

   Sparkie (US Edition) (13 episodes, 2011-2013)
• 
  Trek Buccino

  Mike
• 
  Erin Pitt

   Evie (US Edition) (13 episodes, 2011-2013)
• 
  Isaac Rouse

  Mike
• 
  Colin McFarlane

  Sparkie the Dragon

• 
  Louis Suc

  Edward
• 
  Ben Baker

  Mike the Knight
• 
  Matteo Bragoli

  Fernando (UK & US)
• 
  Beth Chalmers

  Queen Martha (UK)
• 
  Alfie Field

  Mike (UK)
• 
  Jessica Hann

  Evie (UK)
• 
  Russell Tovey

  Squirt (UK)