The Return Of Diesel 12 is a fan-fiction Thomas the Tank Engine and Friends movie.


Diesel 12 has returned and captured Percy. It's up to Thomas and Diesel 10 to defeat Diesel 12 and save Percy.


  • Thomas
  • Edward
  • Duck
  • Percy
  • Diesel 10
  • The Fat Controller (mentioned)
  • Diesel 12
  • Ten Cents (from TUGS)
  • Sunshine (from TUGS)
  • Boomer (from TUGS)


  • Narrated by Pierce Brosnan as Thomas (Narrator).
  • Second (and final) apperence of Diesel 12.


  • When Diesel 12 falls off the old viaduct, a moth is visible under his claw.

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