• 
  Kayne Tremills

   Septico (26 episodes)
• 
  Nia Roam

   Pristine (26 episodes)
• 
  David Collins

   Doolan O'Clean (26 episodes, 2017)
• 
  Shane Dundas

   Seamus O'Clean (26 episodes, 2017)
• 
  Jamie Oxenbould

   Durp-E (26 episodes, 2017)
• 
  Kanja Chen

   B.O. (26 episodes, 2017)
• 
  Cam Ralph

   Additional Voices (23 episodes, 2017)
• 
  Lucy Goleby

  (26 episodes, 2017)

• 
  Michael Gellman

   Colonel Leonidis Yuck (26 episodes, 2017)
• 
  Allison Beula

   Durp-E (26 episodes, 2017)
• 
  Gerard Proust

   Additional Voices (25 episodes, 2017)
• 
  Sarah Harper

   Additional Voices (23 episodes, 2017)
• 
  Lars Classington

  Lou Handy
• 
  Kyle Hickey

  Yurgen Schmell
• 
  Shanna Armogan

  Egregious Flytrap

• 
  Geoff Breen

  Ragnar
• 
  Tatjana Cornij

  NASA Rep
• 
  Graham Galbraith

  Franka
• 
  Mya Singh

  Betsi
• 
  Nelu Handa

  Anne Tennay
• 
  Mamito Kukwikila

  Aunt Ginger