Diesel is a devious and villianous diesel engine. He was voiced by Kerry Shale in UK, and Micheal Brandon in US.


Major Appearances

Season 2

Season 3

Season 6

  • "The World's Strongest Engine"

Season 7

  • "Fergus Breaks the Rules"

Season 8

  • "Thomas to the Rescue"
  • "Squeak, Rattle and Roll"

Season 9

  • "Respect for Gordon"
  • "Bold and Brave"
  • "Flour Power"

Season 10

  • "Emily and the Special Coaches"

Season 11

  • "Thomas and the Stinky Cheese"

Season 12

  • "Thomas and the Billboard"
  • "Don't Go Back"

Season 13

  • "Tickled Pink"

Season 14

  • "Diesel's Special Delivery"
  • "O The Indignity"

Season 15

  • "Tree Trouble"
  • "Fiery Flynn"

Season 16

  • "Percy and the Monster of Brendam"
  • "Thomas and the Rubbish Train"
  • "Bust My Buffers"
  • "Percy and the Calliope"


  • "Calling All Engines"
  • "Misty Island Rescue"
  • "Day of the Diesels"
  • "Blue Mountain Mystery"
  • "King of the Railway"


Season 2

  • "Percy Takes the Plunge"
  • "Thomas and the Missing Christmas Tree"

Season 3

Season 4

  • "Rusty to the Rescue"

Season 13

  • "Percy's Parcel"
  • "A Blooming Mess"
  • "Thomas and the Runaway Kite

Season 14

  • "Thomas' Tall Friend"
  • "James in the Dark"
  • "Toby and the Whistling Woods"
  • "Victor Says Yes"
  • "Thomas in Charge"
  • "Thomas' Crazy Day"
  • "Jitters and Japes"

Season 15

  • "Surprise Surprise"
  • "Stuck on You"

Season 16

  • "Emily's Winter Party Special"

Season 17

  • "Henry's Hero"


  • "The Great Discovery"
  • "Hero of the Rails"

Thomas & Friends Characters

North Western Railway
Steam Engines - ThomasEdwardHenryGordonJamesPercyTobyDuckDonald and DouglasOliverStepneyHarveyEmilyArthurMurdochMollyNevilleRosieWhiffStanley
Diesel Engines - Class 08DaisyBocoDerekSaltyDennis
Other Engines - Bill and BenMavisClass 40'Arry and BertFergusSpencer
Rolling Stock - Annie and ClarabelThe Flying KipperHenriettaThe Spiteful Brake VanToadOld SlowcoachRockyHector the HorridTroublesome Trucks
Skarloey Railway
Engines - SkarloeyRheneasSir HandelPeter SamRustyDuncanDukeBertrumMighty MacFreddie
Other Narrow Gauge Engines
Other Vehicles
TerenceBertieTrevorHaroldBulgyGeorgeCarolineBulstrodeCrankyHorrid LorriesButchTiger MothThumperElizabethJackAlfieMax and MontyOliverKellyByronNedIsabellaPatrickBusterNelsonJeremy
Sir Topham Hatt - "The Fat Controller"Lady HattStephen and Bridget HattMrs. KyndlyJem ColeThe VicarThe Refreshment LadyDowager HattMiss Jenny PackardFarmer McCollAlicia BottiThe Brass BandLord CallanThe Duke and Duchess of BoxfordMr. Percival - "The Thin Controller"Human characters with fewer than two appearances