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Don't Be Silly, Billy

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"He thinks you're a bossy boiler, me hearty."
— Salty
Don't Be Silly, Billy

Steve Asquith


Simon Spencer


Sharon Miller


Michael Angelis
Michael Brandon

Air date

September 9th,
2007 (UK)
October 20th,
2007 (US)
July 15th,
2009 (JAP)
September 23rd,
2011 (AUS)

Previous episode

Thomas Sets Sail

Next episode

Edward and the Mail

Don't Be Silly, Billy is the thirteenth episode of the eleventh season.


Thomas is asked to show a new engine named Billy around. Thomas warns Billy to stock up on coal and water, but Billy, in an angry mood, tells him off that he's bossy and races off to do his first job. Thomas sees Billy collecting chickens from the farm, but Billy puffs off too soon, and the chickens are not loaded yet. Thomas then finds him at the quarry, but Billy leaves as soon as he sees Thomas. Thomas then finds him at the coaling plant, and tells him to take on coal and water. Billy is furious, and calls Thomas bossy again. He then accidentally pushes Percy underneath the coal loader. An exasperated and exhausted Thomas tells Billy to do it his own way. This greatly delights Billy, so he sets off, but has barely moved before he has run out of coal and water. Thomas takes him to be restocked, the two finish the jobs without further mishap, and at the end of the day, Billy thanks Thomas for helping him out.




  • Going by production order, this is the fifteenth episode of the eleventh season.
  • This episode is the first and only appearance of Billy to date, although he was originally intended to appear in the thirteenth season episode Splish, Splash, Splosh!.


  • When Thomas pulls into the docks, his steam platform is visible.
  • When Thomas first arrives at the quarry, his steam platform is visible.
  • The narrator says "Billy backed up to trucks of Diesel oil", but there is only one truck.
  • When Thomas and Billy leave McColl Farm, both of their steam platforms are visible.
  • Diesel's face is falling off when he is at the quarry.
  • In the Latin American version, Mavis has a man's voice when she says "he forgot our oil".
  • When Billy stops because he's run out of coal and water, coal can still be seen in his bunker.

In Other Languages

Language Name Meaning
Spanish No Seas Torpe, Billy Don't Be Silly, Billy
Norwegian Dumme-Billy Silly-Billy
Japanese なまいきなビリー Cheeky Billy
German Ach, du dummer Billy! Oh, You Silly Billy!
Swedish Du är stollig, Billy You're Crazy, Billy
Finnish Höpsö Vili Silly Billy

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