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The fifteenth series of Thomas & Friends first aired during March 2011 in the UK and between October and December in the US. This series has a total of twenty episodes, all of which were narrated by Michael Angelis in the UK and Michael Brandon in the US. Mark Moraghan later re-narrated two episodes in 2013.


(Note: * means that an episode has yet to be released on home media in the US).

Screenshot Title Written by Original UK release date Episode number #
GordonandFerdinandpromo.png Gordon and Ferdinand Sharon Miller 1st March 2011 #01
Gordon is embarrassed to be seen with Ferdinand while delivering the Lion of Sodor.
TobyandBashpromo.jpg Toby and Bash Sharon Miller 2nd March 2011 #02
Toby tries to find Bash a home on Sodor, but Bash misses his friends on Misty Island.
EmilyandDashpromo2.png Emily and Dash Sharon Miller 3rd March 2011 #03
Emily has to escort Dash to a steam fair but thoughtlessly leaves him behind.
Percy'sNewFriendspromo.jpg Percy's New Friends Gerard Foster 4th March 2011 #04
After his friends say they are too busy to play, Percy decides to make friends with the animals on Sodor.
EdwardtheHeropromo.jpg Edward the Hero Sharon Miller 7th March 2011 #05
Edward wants to be a hero like Harold.
JamestotheRescuepromo10.png James to the Rescue Sharon Miller 8th March 2011 #06
James refuses to work with Toby as the rescue engine, but soon regrets his decision.
HappyHiro.jpg Happy Hiro Sharon Miller 9th March 2011 #07
Hiro is feeling homesick, so Thomas tries to cheer him up by taking him to Misty Island.
UpUpandAwaypromo.jpg Up, Up and Away! Sharon Miller 10th March 2011 #08
Thomas and Percy deliver Mr. Bubbles' giant balloon.
Henry'sHappyCoalpromo.jpg Henry's Happy Coal * Sharon Miller 11th March 2011 #09
'Arry and Bert tease Henry about using special coal.
LetitSnow32.jpg Let it Snow Sharon Miller 14th March 2011 #10
While collecting logs for an animal shelter, Thomas sings the Misty Island Snow Song in hopes of making it snow for the Winter Holidays.
SurpriseSurprisepromo.jpg Surprise, Surprise Sharon Miller 15th March 2011 #11
Thomas tries to hold a Christmas party for Percy, Edward and Stanley at the Sodor Steamworks, but does not tell Victor.
SpencertheGrandpromo.png Spencer the Grand Jessica Sandys Clarke 16th March 2011 #12
Spencer disobeys orders and tries to puff to the Duke and Duchess of Boxford's Summer House in the fog.
StopThatBus!promo.png Stop That Bus! Sharon Miller 17th March 2011 #13
Thomas takes Bertie on a tour, but Bertie has to pick up Dowager Hatt and her friends.
StuckonYoupromo2.png Stuck on You Sharon Miller 18th March 2011 #14
Thomas and Butch do not listen to Victor's instructions, so they do not know how to work Butch's new magnet.
BigBellepromo.jpg Big Belle Sharon Miller 21st March 2011 #15
Belle's attempts to be friends with Toby only frighten the steam tram away.
KevintheSteamiepromo.jpg Kevin the Steamie Laurie Israel
Rachel Ruderman
22nd March 2011 #16
Kevin practices shunting so that he can take part in Thomas and Percy's game.
WonkyWhistlepromo.png Wonky Whistle Neil Ben 23rd March 2011 #17
Thomas rushes off before his whistle can be properly fixed and scares Farmer McColl's animals.
PercytheSnowman69.png Percy the Snowman Lizzie Ennever 24th March 2011 #18
Thomas promises to take a depressed Percy to pick up Sir Topham Hatt, but while Thomas is finishing his jobs, he only succeeds in covering Percy in snow.
TreeTroublepromo.jpg Tree Trouble Sharon Miller 25th March 2011 #19
Diesel, Den, Dart and Thomas compete to find the best Christmas tree for the Steamworks and Dieselworks.
FieryFlynnpromo.jpg Fiery Flynn Sharon Miller 28th March 2011 #20
Flynn tries to impress the diesels with his bravado with potentially disastrous results.


Screenshot Title Composers Original release date
JittersandJapes54.png Hear the Engines Coming Robert Hartshorne 5th May 2011 (US)
Tiki-taka, bric-a-brac, shake shake, don't be late...


Characters Introduced

Half Hour Format

When Series 15 aired on Nick Jr. in the UK and Ireland and PBS Kids in the US, each broadcast aired two episodes and a song while the US airings includes a Down at the Station segment.

Exciting Friends

  • Gordon and Ferdinand
  • Song: All You Need
  • Down at the Station: Engines (US only)
  • Toby and Bash

Kindness with Friends

  • Percy's New Friends
  • Song: All You Need
  • Down at the Station: The Railway Line (US only)
  • Emily and Dash

Learning Together

  • James to the Rescue
  • Song: Go, Go Thomas
  • Down at the Station: The Steam Engine (US only)
  • Happy Hiro

Happy Engines

  • Henry's Happy Coal
  • Song: Go, Go Thomas
  • Down at the Station: Coal (US only)
  • Edward the Hero

Fun in the Snow

Helping Each Other

  • Stop that Bus!
  • Song: Roll Along
  • Down at the Station: Passengers (US only)
  • Spencer the Grand

Laughing Together

  • Big Belle
  • Song: Go, Go Thomas!
  • Down at the Station: Water (US only)
  • Stuck on You

Slow Down!

  • Wonky Whistle
  • Song: Hear the Engines Coming
  • Down at the Station: Going Backwards (US only)
  • Up, Up and Away!

Special Times

  • Surprise, Surprise
  • Song: Roll Along
  • Down at the Station: The Driver (US only)
  • Tree Trouble

Being Useful

  • Kevin the Steamie
  • Song: Hear the Engines Coming
  • Down at the Station: Fireman (US only)
  • Fiery Flynn



  • Ben Small as Thomas, Toby and Ferdinand
  • Teresa Gallagher as Emily, Rosie, Belle, Mavis, Lady Hatt and the Ginger-haired Boy
  • Keith Wickham as Edward, Henry, Gordon, James, Percy, Whiff, Dash, Salty, Den, Harold, Captain, the Fat Controller, Dowager Hatt, Mr. Bubbles and the Railway Coal Inspector
  • Matt Wilkinson as Spencer, Stanley, Charlie, Bash, Victor, Cranky, Kevin, Farmer McColl, the Duke of Boxford, the Maithwaite Stationmaster and the Sodor Search and Rescue Centre Manager
  • Rupert Degas as Den (Fiery Flynn only), Dart, Flynn, Bertie and Butch
  • Togo Igawa as Hiro
  • Kerry Shale as Diesel, 'Arry, Bert and Norman
  • William Hope as the Steamworks Worker and the Farm Hands (uncredited)

US and CAN


  • Nitrogen Studios began production on this series in November 2009.[1] Every episode has a copyright of 2010.
  • This series was supposed to air after Day of the Diesels, but was released first for unknown reasons.
  • This series marks the first of a few things:
    • Butch's first speaking role in the television series.
    • Trevor's first episodic appearance in full CGI.
    • Arlesdale End, Castle Loch, the Norramby Fishing Village and Wellsworth's first appearances in full CGI.
    • The first series to have Rupert Degas as part of the voice cast.
    • The first series to have Ben Small and Teresa Gallagher as part of the US voice cast.
    • The first series to have an episode written by Gerard Foster.
    • The first series with twentieth series being the second, not to have Thomas' name titled in any of the episodes.
    • The first series not dubbed in Swedish since the twelfth series.
    • The first series that not released on DVD since the twelfth series in Nordic countries.
  • This is also the only series of a few things:
    • The only series where Thomas, Gordon and Percy have more roles than the rest of the Steam Team.
    • The only series where Annie and Clarabel are never referred to by name.
    • The only series to have Rupert Degas as Butch in the UK. Matt Wilkinson later took over this role in the sixteenth series.
    • The only series to have episodes written by Laurie Israel, Rachel Ruderman, Neil Ben, and Lizzie Ennever.
    • The only series where Sir Topham Hatt's Car does not appear.
    • The only series to have Rail Bridge over Rail and Canal Runby to appear in episodes.
    • The only series since the eighth series not to introduce any non-human characters.
    • The only series since the twelfth series where James speaks in only two episodes and has one starring role.
  • This series marks the last of a few things:
  • In the Korean dub, the original British production crew were never credited.
  • Percy's whistle now budges up and down whenever he uses it.
  • Jules de Jongh is credited in the UK credits despite none of her characters speaking in that dub.
  • On Netflix UK, this series was listed as being thirteenth series. The mistake was later corrected.
  • All the episodes were copyrighted and produced in 2010.