This article is about the tractor. You may be looking for the episode or the Story Library book.

Terence is an orange caterpillar tractor who usually works near Thomas' Branch Line. He is owned and driven by Farmer Finney.


The Railway Series

Thomas insulted Terence for having caterpillar tracks but regretted it after Terence pulled him out of a snowdrift.

Terence befriended Duck while Thomas was at Crovan's Gate Works.

Terence did Percy's shunting work at Ffarquhar while Percy was at Knapford Harbour.

Terence helped to build a barn the day Victoria was sent back to Thomas' Branch Line. After swerving for a boulder by the Hackenbeck tunnel, Terence's trailer fell down the cutting and balanced dangerously on a bush.

Thomas & Friends

As in the Railway Series, Terence rescued Thomas when he got stuck in the snow. He later helped Mrs. Kyndley when her house was snowed up and looked after it when she went with the engines to a Christmas Party. In the second series, Terence befriended Duck while Thomas was at the works and attended the Christmas Party at Tidmouth.

When a storm destroyed much of the forest, Terence helped with the planting of new trees and assured Henry that the forest would look better than ever before. Later, when Bertie got stuck in the mud at the Vicar of Wellsworth's party, Terence used strong ropes to pull him out. During the winter, when villagers were stranded by snow, Terence helped them by ploughing the snow away.

In the fifth series, he warned James about the damage that trees can do and reminded Percy that Mrs. Kyndley's daughter was to get married. He was also seen working at Boulder Quarry.

In the sixth series, he helped clear away fallen rock on the line which had derailed Thomas and almost Toby. He was later seen ploughing in a field when Duncan lost his whistle trying to surprise him.

In the seventh series, he helped clear away a tree that had fallen on the line and pulled Elizabeth out of the snow.

In The Great Discovery, when Thomas went missing, Terence helped with the search for him and once Thomas was found, Terence along with Trevor informed Harvey of the news.

Once, when Terence was collecting Christmas trees for the holiday market, Thomas had requested a large tree for the party at Ulfstead Castle. Terence took a shortcut across a frozen lake to get to the tree, but on the way back, the ice began to break. Thomas managed to pull Terence free from the water, but the tree was lost. 

Sometime later at McColl Farm, he stared confused at some diesel parts that Rebecca had dropped off there and took the produce train that Paxton was supposed to collect, unaware that this was part of Diesel´s trick until Rebecca told Sir Topham Hatt about what Diesel did.


Terence is an assertive, orange tractor with caterpillar tracks. The engines find these very unusual, but Terence is very capable of proving that he does not need rails and that his tracks allow him to go practically anywhere. He takes any teasing in the name of fun and is happy to get on with his job, usually partaking in agricultural work. Terence never hesitates to assist in emergencies or sticky situations, road or rail, due to his helpful, forgiving nature. His tracks are particularly invaluable in harsh winter conditions when snow can affect transport across the Island. He may be slow, but he is versatile, adaptable and helpful. He can usually be found transporting agricultural produce or cheerily ploughing fields beside Thomas' branch line. Sometimes, though, he can get a little overconfident and forget to listen to his own advice: "You have to be sensible if you want to stay safe!"

Technical Details


Terence is based on a Caterpillar Model 70; the largest and last design of petrol-powered tractors in the Caterpillar Tractor Company's range. The construction tractors are also based on this tractor.


Terence is painted orange with grey caterpillar tracks and a black engine and exhaust pipe.


Magazine Stories

Terence also appeared in the magazine stories, Christmas Puddings, Diesel Display, Good Games, Bad Sport!, Holiday Havoc!, Rude James, Size Wise, Take Off with Terence and The Huge Horses!.

Annual Stories


Audio Stories


  • Terence is the first non-rail character introduced in the entire series, discounting Sir Topham Hatt or any other Human Characters.
  • Terence is drawn with a cab, but without his widow's peak in the book, Thomas's Christmas Party.
  • Up until the twenty-second series, in which Bertie was absent, Terence was the only character introduced in the first series to be absent from any series afterwards.
  • Terence's television series model is currently on display at Drayton Manor. His detachable plough, however, has been broken since the display opened.
  • Terence is a bit longer than his basis.
    • Additionally, his model version treads, are made of parts from a model of the German WWII Tiger I tank. The most notable is the caterpillars.
  • According to The Thomas the Tank Engine Man, Terence was originally going to be called "Terry", but was later changed to the current and more formal version of the name. However, his original name is seen on the 1971 Railway Map of the Island of Sodor.
  • According to a magazine article, Terence sometimes works on Farmer Trotter's Pig Farm.
  • In some merchandising and books, Terence's name is sometimes misspelt as "Terrence".
  • The shape of his face seems to have changed over time.
  • In the 1995 annual story, James Gets Cracking, Terence's driver was revealed to be named Farmer Finney. However, he has been driven by Jem Cole, Farmer McColl, and Farmer Collett once before. In a deleted scene of Ghost Train, Terence was driven by Sam the Farmer.
  • In the French dub of the first seven series, Terence's name is Thierry.
  • Up until the twenty-first series, Terence never had any eyebrows in the television series, although he has eyebrows in some illustrations and merchandise.
  • In some scenes, Terence's plough is shown lifted above the ground via small hydraulics yet the company that made his basis designed a set of beams, an A-frame and a winch to lift and lower the plough.
  • The Polish Story Library book Terence is named Teodor, though his name in the Polish dub is Tymcio.
  • One part on Terence's Plough was made using a LEGO element.



Non-rail vehicles

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