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"I'll show that smelly diesel and those lazy steamers!"
— Duncan

Dunkin Duncan is the twenty-fourth episode of the sixth season.


Rusty, Rheneas, and Skarloey go to the slate mines to help Duncan. Duncan is impatient and behaves rudely towards the others. While the others are taking some trucks back, Duncan pushes the trucks around, and, while shunting some empties at the incline, gets his coupling tangled with a truck. The winch hauls the trucks and Duncan up the slope. Duncan's weight is too much for the winch and a coupling breaks, making Duncan run down the hill into the swamp. Duncan is pulled out and the Fat Controller makes him work at the mines as punishment until he learns to be "patient and careful".




  • From this episode onwards, Skarloey is lacking the gold stripe around the top of his funnel and his buffers are black.
  • In both the US & UK dubs when Duncan screams "HELP!" it's the same recording of Diesel's voice used from The World's Strongest Engine.
  • After the coupling breaks in the US narration, there is an extra line. "Duncan plummeted down the incline."


  • Rheneas has a different whistle sound.
  • The narrator says "Rusty, Rheneas and Skarloey chugged cheerfully through the Sodor countryside," but Rusty is a diesel and cannot chug, also Skarloey and Rheneas look glum.
  • As Duncan was pulled up the incline, the narrator says his driver jumped clear, however, his cab was already empty.
  • When Duncan and the trucks are pulled up the incline, they are coupled up, but they fall off the cliff one by one.
  • When played in slow-motion, Duncan's wheel chassis comes loose from the near upper-body work as he falls off the cliff.
  • When Duncan falls into the swamp, one of the trucks splatters mud under his mouth. But seconds afterwards, the mud was all over his buffers and mouth. When he was lifted out, the mud was all over his face.
  • When Duncan reaches the top of the incline, his coupling is no longer twisted.
  • When Skarloey, Rheneas, and Rusty go across the bridge, Skarloey's eyes are wonky.
  • A string can be seen moving off screen when the trucks fall in the mud.

In Other Languages

Language Name Meaning
Dutch Ongedulding Duncan Impatient Duncan
Danish Dunder til Duncan Dunder for Duncan
Norwegian Duncan Dummer Seg Ut Duncan Makes a Fool of Himself
Swedish Dunkande Duncan Dunkin Duncan
Hungarian Duncan Türelmetlen Impatient Duncan
Italian La Locomotiva Frettolosa The Hasty Engine
Romanian Morocănoscul Duncan Grumpy Duncan
Slovenian Nestrpni Francelj Impatient Duncan
Polish Niedobry Damian Bad Duncan
Slovak Neposlušný Duncan Disobedient Duncan
Czech Duncan se Koupe Duncan Bathes
Chinese 邓肯 邓肯 Duncan Duncan
Japanese どろんこダンカン Muddy Duncan
Russian Нетерпеливый Данкан Impatient Duncan
Korean 사고뭉치 덩컨 Bad Boys for Duncan
Thai ดันแคนตกบ่อโคลน Duncan Fell in the Mud

Home Media Releases


DVD Packs


DVD Boxsets


  • The Complete Series 6

DVD Packs