Thomas Made up Characters and Episodes Wiki

A Really Useful Engine is the sixth episode of the fourth season

"I'm the most useful"

"No I am"

"Never in a million years. I am"

"Scottish, so I am the most useful"

Donald, Douglas, Duck, and Oliver arguing over who's the most useful

A Really Useful Engine
Season 4, Episode 6
Air date November 29, 2011
Written by HenryDashPaxton3000
Episode guide
The Final Decision
A Day at the DieselWorks


Donald shunts Henry to the SteamWorks, Duck delivers Gordon and James coal, Douglas fetches Rocky so he can lift Hiro onto a flatbed, and Oliver delivers parts to the Diesels. At the sheds Donald says Sir Topham Hatt called him 'The Most Useful Engine Of The Day'. Duck and Oliver say he said that too. Douglas says that he was the most as helping an old engine is very useful. Donald says he shunted an old engine too. Duck says he delivered parts to engines out of his guage. Oliver says he dilvered parts way out of their guage... to the Diesels. All of them want to prove they're the most useful. Because of the racket Edward, Toby, and Henry didn't get to sleep. Henry feels blue and as he goes toward the station Edward comes in as a middle engine and crashes Henry, Toby comes just a minute later and crashes. Duck, Donald, Oliver, and Douglas race to the rescue. Oliver gets the work coach, Donald breakdown train, Douglas Rocky, and Oliver brings coaches to take the passengers but they race and simply derail thwmselfs. Luckily Rocky still on the rails James comes to the rescue and Sir Topham Hatt makes him 'The Most Useful Engine of the Day'. The other 4 are sent to The Siding in disgrace.


  • Duck
  • Donald
  • Douglas
  • Oliver
  • Sir Topham Hatt
  • Edward (non-speaking role)
  • Henry (non-speaking role)
  • James (non-speaking role)
  • Toby (non-speaking role)
  • Rocky (non-speaking role)
  • Hiro (non-speaking role)
  • Spencer (cameo)
  • Stanley (cameo)
  • Thomas (cameo)
  • Kevin (cameo)
  • Diesel 10 (cameo)
  • 'Arry (cameo)
  • Paxton (cameo)
  • Dart (cameo)


  • Douglas is officially introduced in this episode as he was suppose to appear in this episode and not Trusty Ferdinand and The Curse of The Scottish. In A Thanksgiving Celebration he didn't speak meaning this is his official introduction.
  • This is the first episode not to have any made up engines nor as cameos, non-speaking roles, or being mentioned. It had all official characters from either The Railway Series or The Television Series.