Magic Merlin is an upcoming episode.


Merlin gets magical and he is a magical invisible engine.


  • Edward
  • Hurricane
  • Merlin
  • Diesel
  • Den
  • Dart
  • Norman
  • Reg
  • Mr. Percival
  • Thomas (narration only; end segment)
  • Annie and Clarabel (end segment)
  • Rosie (cameo)
  • Belle (cameo)
  • Connor (cameo)
  • Caitlin (cameo)
  • 'Arry and Bert (cameo)
  • Butch (cameo)
  • Paxton (stock footage)


  • At the end of the episode, Thomas mentions the events from the eighteenth season episode, Disappearing Diesels, stock footage from the said episode is also used.
Community content is available under CC-BY-SA unless otherwise noted.