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The nineteenth series of Thomas & Friends first premiered on DVD on 9th June 2015 in the US before airing on TV. It aired on TV on 21 September 2015 in the UK and on 13 October 2015 in the US. This is notable as the final series scored by Robert Hartshorne; he would be replaced by Chris Renshaw for the remainder of the show's run.

Episodes

Screenshot UK title (top)
US title (bottom)
Written by Episode number #
Who'sGeoffreypromo Who's Geoffrey? Lee Pressman #01
Thomas blames an accident on made-up engine Geoffrey.
ACrankyChristmaspromo4 A Cranky Christmas Mark Huckerby
Nick Ostler
#02
Thomas is sent to take a special crate to the Town Square from the docks, but Cranky accidentally drops the crate.
SnowPlaceLikeHomepromo2 Snow Place Like Home Lee Pressman #03
Kevin gets stuck out in the snow, and Victor goes out looking for him, despite his hatred of snow.
TheTruthAboutTobypromo2 The Truth About Toby Davey Moore #04
Toby accidentally runs out of coal at the scrapyards, leaving the engines to think he is going to be scrapped.
LostPropertypromo4 Lost Property Helen Farrall #05
The Fat Controller is anxious as two grumpy inspectors have come to inspect the railway, starting with Thomas. To prevent an even worse report, Thomas helps return the lost pocket watch to the railway inspector.
HenrySpotsTrouble60 Henry Spots Trouble Davey Moore #06
After he sees the Fat Controller's grandchildren with chickenpox, Henry worries about catching the disease himself.
ToadandtheWhalepromo Toad and the Whale Helen Farrall #07
Toad spots a stranded whale on the beach, but Oliver does not take him seriously.
VeryImportantSheeppromo3 Very Important Sheep Helen Farrall #08
Percy does not notice his sheep jumping out of his cattle truck.
TheBeastofSodorpromo3 The Beast of Sodor Becky Overton #09
Spencer frightens Henry after telling a scary story about an abominable snowman, but both engines get a fright when the Fat Controller gets completely covered in snow.
SaltyAllatSeapromo3 Salty All at Sea Lee Pressman #10
Salty's imagination runs away with him as he worries about going to the Mainland by sea.
Diesel'sGhostlyChristmaspromo4 Diesel's Ghostly Christmas Part 1 Becky Overton #11
Diesel starts causing trouble at Christmas time and he gets visited by the Ghost of Christmas Past.
Diesel'sGhostlyChristmaspromo3 Diesel's Ghostly Christmas Part 2 Becky Overton #12
Diesel now meets up with two other ghostly engines. The Ghost of Christmas Present and the Ghost of Christmas Future, and he later finds the Fat Controller still at Knapford during the Earl's Christmas party at Ulfstead Castle.
DenandDartpromo Den and Dart Davey Moore #13
Mavis has an accident at Ffarquhar Quarry and is sent to the Dieselworks. Den is sent to take her place, while Dart has to stay at the Dieselworks. However, the two always work together and they fear to be without the other.
HelpingHiropromo1 Helping Hiro Mark Huckerby
Nick Ostler
#14
Thomas feels guilty about causing Hiro to have an accident. To make up for it, Thomas ventures into Hiro's old hideout to see if he can try to salvage some left behind parts.
SlowStephenpromo3 Slow Stephen Helen Farrall #15
Stephen is a slow engine, but one day, when the Sodor Suspension Bridge collapses, he tries to stop Gordon from crossing the bridge.
TwoWheelsGoodpromo Two Wheels Good Lee Pressman #16
Spencer, Thomas, and Bertie argue over how many wheels are best. But in the end, Harold ends up getting the Duke and Duchess of Boxford to Callan Castle when the others each get into trouble.
RedsvsBluespromo2 Reds vs Blues Davey Moore #17
Thomas and James compete with each other to see who can get to Dryaw first.
BestEngineEverpromo Best Engine Ever Andrew Brenner #18
Emily idolises Caitlin when she sees how fast Caitlin can go.
TheLittleEngineWhoRacedAheadpromo2 The Little Engine Who Raced Ahead Andrew Brenner #19
A new diesel boxcab named Philip arrives. Loving to race, he thinks he is racing Gordon when in actuality Gordon never took part.
PhiliptotheRescuepromo2 Philip to the Rescue Andrew Brenner #20
James is determined to prove himself stronger than Philip, but he ends up crashing on the stone bridge.
WildWaterRescuepromo Wild Water Rescue Becky Overton #21
Diesel is jealous of Percy's job to collect the Mayor of Sodor, so he directs Percy to an old disused quarry while he takes him himself.
ThomastheBabysitterpromo Thomas the Babysitter Helen Farrall #22
A mother and her noisy baby want to have a ride on Thomas' train, but the baby keeps crying which leads to irritation to Thomas, Annie, Clarabel, and the passengers.
RockyRescuepromo Rocky Rescue Davey Moore #23
Rocky ends up derailing and the Search and Rescue Team have to work together to put him back on the rails again.
TheOtherSideoftheMountainpromo The Other Side of the Mountain Andrew Brenner #24
Thomas discovers Bertie has been rerouted to behind the other side of the mountain, making Thomas curious as to what is there.
NoHelpatAllpromo No Help at All Andrew Brenner #25
Bill and Ben say that Timothy is no help at all and send him to help Cranky and Porter at the docks.
GoodbyeFatControllerpromo2 Goodbye Fat Controller
Goodbye Sir Topham Hatt
Andrew Brenner (writer)
Robin Gay (story idea)
#26
Percy overhears some workmen talking and thinks the Fat Controller is leaving Sodor, so he and the other engines go on strike at Tidmouth Sheds.

Screenshot Title Written by Original UK release date Episode number #
Who'sGeoffreypromo Who's Geoffrey? Lee Pressman 21 September 2015 #01
Thomas blames an accident on made-up engine Geoffrey.
TheTruthAboutTobypromo2 The Truth About Toby Davey Moore 22 September 2015 #02
Toby accidentally runs out of coal at the scrapyards, leaving the engines to think he is going to be scrapped.
LostPropertypromo4 Lost Property Helen Farrall 23 September 2015 #03
The Fat Controller is anxious as two grumpy inspectors have come to inspect the railway, starting with Thomas. To prevent an even worse report, Thomas helps return the lost pocket watch to the railway inspector.
HenrySpotsTrouble60 Henry Spots Trouble Davey Moore 24 September 2015 #04
After he sees the Fat Controller's grandchildren with chickenpox, Henry worries about catching the disease himself.
ACrankyChristmaspromo4 A Cranky Christmas Mark Huckerby
Nick Ostler
4 January 2016 #05
Thomas is sent to take a special crate to the Town Square from the docks, but Cranky accidentally drops the crate.
SnowPlaceLikeHomepromo2 Snow Place Like Home Lee Pressman 5 January 2016 #06
Kevin gets stuck out in the snow, and Victor goes out looking for him, despite his hatred of snow.
TheBeastofSodorpromo3 The Beast of Sodor Becky Overton 6 January 2016 #07
Spencer frightens Henry after telling a scary story about an abominable snowman, but both engines get a fright when the Fat Controller gets completely covered in snow.
ToadandtheWhalepromo Toad and the Whale Helen Farrall 14 March 2016 #08
Toad spots a stranded whale on the beach, but Oliver does not take him seriously.
VeryImportantSheeppromo3 Very Important Sheep Helen Farrall 15 March 2016 #09
Percy does not notice his sheep jumping out of his cattle truck.
SaltyAllatSeapromo3 Salty All at Sea Lee Pressman 16 March 2016 #10
Salty's imagination runs away with him as he worries about going to the Mainland by sea.
DenandDartpromo Den and Dart Davey Moore 17 March 2016 #11
Mavis has an accident at Ffarquhar Quarry and is sent to the Dieselworks. Den is sent to take her place, while Dart has to stay at the Dieselworks. However, the two always work together and they fear to be without the other.
HelpingHiropromo1 Helping Hiro Mark Huckerby
Nick Ostler
18 March 2016 #12
Thomas feels guilty about causing Hiro to have an accident. To make up for it, Thomas ventures into Hiro's old hideout to see if he can try to salvage some left behind parts.
SlowStephenpromo3 Slow Stephen Helen Farrall 11 July 2016 #13
Stephen is a slow engine, but one day, when the Sodor Suspension Bridge collapses, he tries to stop Gordon from crossing the bridge.
TwoWheelsGoodpromo Two Wheels Good Lee Pressman 12 July 2016 #14
Spencer, Thomas, and Bertie argue over how many wheels are best. But in the end, Harold ends up getting the Duke and Duchess of Boxford to Callan Castle when the others each get into trouble.
RedsvsBluespromo2 Reds vs Blues Davey Moore 13 July 2016 #15
Thomas and James compete with each other to see who can get to Dryaw first.
BestEngineEverpromo Best Engine Ever Andrew Brenner 14 July 2016 #16
Emily idolises Caitlin when she sees how fast Caitlin can go.
TheLittleEngineWhoRacedAheadpromo2 The Little Engine Who Raced Ahead Andrew Brenner 15 July 2016 #17
A new diesel boxcab named Philip arrives. Loving to race, he thinks he is racing Gordon when in actuality Gordon never took part.
PhiliptotheRescuepromo2 Philip to the Rescue Andrew Brenner 18 July 2016 #18
James is determined to prove himself stronger than Philip, but he ends up crashing on the stone bridge.
Diesel'sGhostlyChristmaspromo4 Diesel's Ghostly Christmas Part 1 Becky Overton 26 December 2016 #19
Diesel starts causing trouble at Christmas time and he gets visited by the Ghost of Christmas Past.
Diesel'sGhostlyChristmaspromo3 Diesel's Ghostly Christmas Part 2 Becky Overton 26 December 2016 #20
Diesel now meets up with two other ghostly engines. The Ghost of Christmas Present and the Ghost of Christmas Future, and he later finds the Fat Controller still at Knapford during the Earl's Christmas party at Ulfstead Castle.
ThomastheBabysitterpromo Thomas the Babysitter Helen Farrall 6 March 2017 #21
A mother and her noisy baby want to have a ride on Thomas' train, but the baby keeps crying which leads to irritation to Thomas, Annie, Clarabel, and the passengers.
RockyRescuepromo Rocky Rescue Davey Moore 6 March 2017 #22
Rocky ends up derailing and the Search and Rescue Team have to work together to put him back on the rails again.
TheOtherSideoftheMountainpromo The Other Side of the Mountain Andrew Brenner 7 March 2017 #23
Thomas discovers Bertie has been rerouted to behind the other side of the mountain, making Thomas curious as to what is there.
NoHelpatAllpromo No Help at All Andrew Brenner 8 March 2017 #24
Bill and Ben say that Timothy is no help at all and send him to help Cranky and Porter at the docks.
GoodbyeFatControllerpromo2 Goodbye Fat Controller Andrew Brenner (writer)
Robin Gay (story idea)
9 March 2017 #25
Percy overhears some workmen talking and thinks the Fat Controller is leaving Sodor, so he and the other engines go on strike at Tidmouth Sheds.
WildWaterRescuepromo Wild Water Rescue Becky Overton 10 March 2017 #26
Diesel is jealous of Percy's job to collect the Mayor of Sodor, so he directs Percy to an old disused quarry while he takes him himself.

Screenshot Title Written by Original US release date Episode number #
Who'sGeoffreypromo Who's Geoffrey? Lee Pressman 13 October 2015 #01
Thomas blames an accident on made-up engine Geoffrey.
TheTruthAboutTobypromo2 The Truth About Toby Davey Moore 13 October 2015 #02
Toby accidentally runs out of coal at the scrapyards, leaving the engines to think he is going to be scrapped.
LostPropertypromo4 Lost Property Helen Farrall 14 October 2015 #03
Sir Topham Hatt is anxious as two grumpy inspectors have come to inspect the railway, starting with Thomas. To prevent an even worse report, Thomas helps return the lost pocket watch to the railway inspector.
HenrySpotsTrouble60 Henry Spots Trouble Davey Moore 14 October 2015 #04
After he sees Sir Topham Hatt's grandchildren with chickenpox, Henry worries about catching the disease himself.
ToadandtheWhalepromo Toad and the Whale Helen Farrall 12 May 2016 #05
Toad spots a stranded whale on the beach, but Oliver does not take him seriously.
VeryImportantSheeppromo3 Very Important Sheep Helen Farrall 12 May 2016 #06
Percy does not notice his sheep jumping out of his cattle car.
SaltyAllatSeapromo3 Salty All at Sea Lee Pressman 13 May 2016 #07
Salty's imagination runs away with him as he worries about going to the Mainland by sea.
DenandDartpromo Den and Dart Davey Moore 13 May 2016 #08
Mavis has an accident at Ffarquhar Quarry and is sent to the Dieselworks. Den is sent to take her place, while Dart has to stay at the Dieselworks. However, the two always work together and they fear to be without the other.
SlowStephenpromo3 Slow Stephen Helen Farrall 18 October 2016 #09
Stephen is a slow engine, but one day, when the Sodor Suspension Bridge collapses, he tries to stop Gordon from crossing the bridge.
TwoWheelsGoodpromo Two Wheels Good Lee Pressman 18 October 2016 #10
Spencer, Thomas, and Bertie argue over how many wheels are best. But in the end, Harold ends up getting the Duke and Duchess of Boxford to Callan Castle when the others each get into trouble.
RedsvsBluespromo2 Reds vs Blues Davey Moore 19 October 2016 #11
Thomas and James compete with each other to see who can get to Dryaw first.
BestEngineEverpromo Best Engine Ever Andrew Brenner 19 October 2016 #12
Emily idolizes Caitlin when she sees how fast Caitlin can go.
TheLittleEngineWhoRacedAheadpromo2 The Little Engine Who Raced Ahead Andrew Brenner 20 October 2016 #13
A new diesel boxcab named Philip arrives. Loving to race, he thinks he is racing Gordon when in actuality Gordon never took part.
PhiliptotheRescuepromo2 Philip to the Rescue Andrew Brenner 20 October 2016 #14
James is determined to prove himself stronger than Philip, but he ends up crashing on the stone bridge.
ACrankyChristmaspromo4 A Cranky Christmas Mark Huckerby
Nick Ostler
12 December 2016 #15
Thomas is sent to take a special crate to the Town Square from the docks, but Cranky accidentally drops the crate.
SnowPlaceLikeHomepromo2 Snow Place Like Home Lee Pressman 12 December 2016 #16
Kevin gets stuck out in the snow, and Victor goes out looking for him, despite his hatred of snow.
HelpingHiropromo1 Helping Hiro Mark Huckerby
Nick Ostler
13 December 2016 #17
Thomas feels guilty about causing Hiro to have an accident. To make up for it, Thomas ventures into Hiro's old hideout to see if he can try to salvage some left behind parts.
TheBeastofSodorpromo3 The Beast of Sodor Becky Overton 13 December 2016 #18
Spencer frightens Henry after telling a scary story about an abominable snowman, but both engines get a fright when Sir Topham Hatt gets completely covered in snow.
Diesel'sGhostlyChristmaspromo4 Diesel's Ghostly Christmas Part 1 Becky Overton 14 December 2016 #19
Diesel starts causing trouble at Christmas time and he gets visited by the Ghost of Christmas Past.
Diesel'sGhostlyChristmaspromo3 Diesel's Ghostly Christmas Part 2 Becky Overton 14 December 2016 #20
Diesel now meets up with two other ghostly engines. The Ghost of Christmas Present and the Ghost of Christmas Future, and he later finds Sir Topham Hatt still at Knapford during the Earl's Christmas party at Ulfstead Castle.
WildWaterRescuepromo Wild Water Rescue Becky Overton 15 March 2018 #21
Diesel is jealous of Percy's job to collect the Mayor of Sodor, so he directs Percy to an old disused quarry while he takes him himself.
TheOtherSideoftheMountainpromo The Other Side of the Mountain Andrew Brenner 16 May 2018 #22
Thomas discovers Bertie has been rerouted to behind the other side of the mountain, making Thomas curious as to what is there.

Unaired Episodes

The following episodes are not known to have been aired on television in the US and are only available via home media releases:

Screenshot Title Written by Episode number #
ThomastheBabysitterpromo Thomas the Babysitter Helen Farrall #TBA
A mother and her noisy baby want to have a ride on Thomas' train, but the baby keeps crying which leads to irritation to Thomas, Annie, Clarabel, and the passengers.
RockyRescuepromo Rocky Rescue Davey Moore #TBA
Rocky ends up derailing and the Search and Rescue Team have to work together to put him back on the rails again.
NoHelpatAllpromo No Help at All Andrew Brenner #TBA
Bill and Ben say that Timothy is no help at all and send him to help Cranky and Porter at the docks.
GoodbyeFatControllerpromo2 Goodbye Sir Topham Hatt Andrew Brenner (writer)
Robin Gay (story idea)
#TBA
Percy overhears some workmen talking and thinks Sir Topham Hatt is leaving Sodor, so he and the other engines go on strike at Tidmouth Sheds.

Screenshot Title Written by Original JPN release date Episode number #
Who'sGeoffreypromo なぞのきかんしゃジェフリー (Who's Geoffrey?) Lee Pressman 1 November 2015 #01
Thomas blames an accident on made-up engine Geoffrey.
TheTruthAboutTobypromo2 さよならトビー? (The Truth About Toby) Davey Moore 1 November 2015 #02
Toby accidentally runs out of coal at the scrapyards, leaving the engines to think he is going to be scrapped.
LostPropertypromo4 わすれものをとどけよう (Lost Property) Helen Farrall 8 November 2015 #03
Sir Topham Hatt is anxious as two grumpy inspectors have come to inspect the railway, starting with Thomas. To prevent an even worse report, Thomas helps return the lost pocket watch to the railway inspector.
HenrySpotsTrouble60 ヘンリーのしんぱい (Henry Spots Trouble) Davey Moore 8 November 2015 #04
After he sees Sir Topham Hatt's grandchildren with chickenpox, Henry worries about catching the disease himself.
VeryImportantSheeppromo3 たいせつなひつじ (Very Important Sheep) Helen Farrall 15 November 2015 #05
Percy does not notice his sheep jumping out of his cattle truck.
SaltyAllatSeapromo3 ソルティーはうみをいく (Salty All at Sea) Lee Pressman 15 November 2015 #06
Salty's imagination runs away with him as he worries about going to the Mainland by sea.
HelpingHiropromo1 ヒロをすくえ! (Helping Hiro) Mark Huckerby
Nick Ostler
15 November 2015 #07
Thomas feels guilty about causing Hiro to have an accident. To make up for it, Thomas ventures into Hiro's old hideout to see if he can try to salvage some left behind parts.
ToadandtheWhalepromo トードとクジラ (Toad and the Whale) Helen Farrall 22 November 2015 #08
Toad spots a stranded whale on the beach, but Oliver does not take him seriously.
SlowStephenpromo3 のろのろスティーブン (Slow Stephen) Helen Farrall 29 November 2015 #09
Stephen is a slow engine, but one day, when the Sodor Suspension Bridge collapses, he tries to stop Gordon from crossing the bridge.
TwoWheelsGoodpromo しゃりんはいくつ (Two Wheels Good) Lee Pressman 29 November 2015 #10
Spencer, Thomas, and Bertie argue over how many wheels are best. But in the end, Harold ends up getting the Duke and Duchess of Boxford to Callan Castle when the others each get into trouble.
RedsvsBluespromo2 あかとあおのたいけつ (Reds vs Blues) Davey Moore 6 December 2015 #11
Thomas and James compete with each other to see who can get to Dryaw first.
BestEngineEverpromo エミリーとケイトリン (Best Engine Ever) Andrew Brenner 6 December 2015 #12
Emily idolizes Caitlin when she sees how fast Caitlin can go.
TheLittleEngineWhoRacedAheadpromo2 やんちゃなフィリップ (The Little Engine Who Raced Ahead) Andrew Brenner 13 December 2015 #13
A new diesel boxcab named Philip arrives. Loving to race, he thinks he is racing Gordon when in actuality Gordon never took part.
PhiliptotheRescuepromo2 やっぱりやんちゃなフィリップ (Philip to the Rescue) Andrew Brenner 13 December 2015 #14
James is determined to prove himself stronger than Philip, but he ends up crashing on the stone bridge.
ACrankyChristmaspromo4 クランキーのクリスマス (A Cranky Christmas) Mark Huckerby
Nick Ostler
20 December 2015 #15
Thomas is sent to take a special crate to the Town Square from the docks, but Cranky accidentally drops the crate.
DenandDartpromo デンとダートはいいコンビ (Den and Dart) Davey Moore 20 December 2015 #16
Mavis has an accident at Ffarquhar Quarry and is sent to the Dieselworks. Den is sent to take her place, while Dart has to stay at the Dieselworks. However, the two always work together and they fear to be without the other.
Diesel'sGhostlyChristmaspromo4 ディーゼルのクリスマスキャロル (Diesel's Ghostly Christmas) Part 1 Becky Overton 23 December 2015 #17
Diesel starts causing trouble at Christmas time and he gets visited by the Ghost of Christmas Past.
Diesel'sGhostlyChristmaspromo3 ディーゼルのクリスマスキャロル (Diesel's Ghostly Christmas) Part 2 Becky Overton 23 December 2015 #18
Diesel now meets up with two other ghostly engines. The Ghost of Christmas Present and the Ghost of Christmas Future, and he later finds Sir Topham Hatt still at Knapford during the Earl's Christmas party at Ulfstead Castle.
SnowPlaceLikeHomepromo2 ほっとするばしょ (Snow Place Like Home) Lee Pressman 27 December 2015 #19
Kevin gets stuck out in the snow, and Victor goes out looking for him, despite his hatred of snow.
TheBeastofSodorpromo3 ソドーとうのゆきおとこ (The Beast of Sodor) Becky Overton 27 December 2015 #20
Spencer frightens Henry after telling a scary story about an abominable snowman, but both engines get a fright when Sir Topham Hatt gets completely covered in snow.
NoHelpatAllpromo もどってきてティモシー (No Help at All) Andrew Brenner 10 January 2016 #21
Bill and Ben say that Timothy is no help at all and send him to help Cranky and Porter at the docks.
WildWaterRescuepromo パーシーをきゅうしゅつせよ! (Wild Water Rescue) Becky Overton 10 January 2016 #22
Diesel is jealous of Percy's job to collect the Mayor of Sodor, so he directs Percy to an old disused quarry while he takes him himself.
ThomastheBabysitterpromo トーマスとあかちゃん (Thomas the Babysitter) Helen Farrall 17 January 2016 #23
A mother and her noisy baby want to have a ride on Thomas' train, but the baby keeps crying which leads to irritation to Thomas, Annie, Clarabel, and the passengers.
TheOtherSideoftheMountainpromo やまのむこうがわ (The Other Side of the Mountain) Andrew Brenner 17 January 2016 #24
Thomas discovers Bertie has been rerouted to behind the other side of the mountain, making Thomas curious as to what is there.
RockyRescuepromo ロッキーきゅうしゅつさくせん (Rocky Rescue) Davey Moore 24 January 2016 #25
Rocky ends up derailing and the Search and Rescue Team have to work together to put him back on the rails again.
GoodbyeFatControllerpromo2 トップハム・ハットきょうにサヨナラ (Goodbye Sir Topham Hatt) Andrew Brenner (writer)
Robin Gay (story idea)
24 January 2016 #26
Percy overhears some workmen talking and thinks Sir Topham Hatt is leaving Sodor, so he and the other engines go on strike at Tidmouth Sheds.

Songs

Screenshot Title Composers Original release date
Diesel'sGhostlyChristmas2 There's Snow Place Like Home Eggplant LF 13th October 2015 (US; Digital Download)
I'll be home for Christmas
No matter how much it snows...
ThomasandtheEmergencyCable1 Let's Go! Eggplant LF 13th October 2015 (US)
Let's go
Thomas can take us there...
Redsvs.Blues87 Race with You Eggplant LF 1st March 2016 (US; DVD)
Hey, hey, hey (Hey, hey, hey)
Move, move, move (Move, move, move)...
TheAdventureBegins601 Spring is Here! Eggplant LF 12th May 2016 (US)
There's something in the air
Something fresh and new...
Season19EngineRollCall1 Engine Roll Call (new arrangement and footage) Ed Welch
Steve D'Angelo
Terry Tompkins
21st September 2015 (UK)
They're two, they're four, they're six, they're eight,
Shunting trucks and hauling freight...
NoHelpAtAll65 Down by the Docks (new arrangement) Mike O'Donnell
Junior Campbell
Robert Hartshorne
8th March 2017 (UK)
Down by the docks, that's the place to be,
Down by the docks, gateway to the sea...

Characters

Returning Characters

Characters Introduced

Locations

Half Hour Format

When the nineteenth series aired on PBS Kids, each broadcast aired two episodes, a song and Mr. Perkins Railway segments. When other episodes started airing on 18th October 2016, Mr. Perkins' Railway segments were replaced with The Earls Quiz and after the second episode, Learn with Thomas segments from the official YouTube channel were also added.

Telling Tales

Finders Keepers

  • Lost Property
  • Song: Really Useful Engine (The Adventure Begins version)
  • Mr. Perkins' Railway Segment: Jobs on the Railway
  • Henry Spots Trouble

Lost and Found

  • Diesel and the Ducklings (Nick Jr.)
  • Toad and the Whale
  • Song: Spring is Here!
  • Mr. Perkins' Railway Segment: Washdown (PBS Kids)
  • Very Important Sheep
  • Mucking About (Nick Jr.)
  • Guess Who Puzzles - Porter and Reg (PBS Kids)

All At Sea

  • Salty All At Sea
  • Song: Let's Go
  • Mr Perkins' Railway Segment: Different Types of Engines
  • Den and Dart
  • Guess Who Puzzles - Samson and Timothy

Slowly Wins the Race

Competing Engines

The Race is On

Christmas Time

Spooky Snow

  • Helping Hiro
  • Song: Monsters Everywhere
  • Mr. Perkins' Railway: Railway Maintenance
  • The Beast of Sodor
  • Guess Who Puzzles? - Toad and Marion

Tis the Season to be Jolly

  • Diesel's Ghostly Christmas
  • Song: There's Snow Place Like Home
  • Mr. Perkins' Railway: Signals and Points
  • Guess Who Puzzles? - Oliver and Reg

Cast

UK

US

  • Joseph May as Thomas
  • William Hope as Edward, Toby, Whiff, Rocky, Farmer McColl, the Duke of Boxford and a Workman
  • Kerry Shale as Henry, Gordon, Scruff, Diesel, Harold, Kevin, Flynn (Toad and the Whale only), Mr. Percival, the Man on the Bridge and Some Workmen
  • Rob Rackstraw as James, Flynn, Some Passengers, a Painter and Some Workmen
  • Christopher Ragland as Percy and the Troublesome Trucks
  • Jules de Jongh as Emily and the Duchess of Boxford
  • Steven Kynman as Duck, Dart, Paxton, Butch and the Bird Watcher
  • Joe Mills as Oliver, Toad and a Knapford Station Yard Workman
  • Keith Wickham as Salty, Den, Stafford, Bertie, Captain, Sir Topham Hatt, Dowager Hatt, Lord Callan, one of the Railroad Inspectors, the Grumpy Passenger, Some Workmen, the Signalman, the Soccer fans, the Soccer Players, the Wellsworth Stationmaster, Stephen's Driver and Stephen's Fireman
  • Glenn Wrage as Spencer and Cranky
  • Togo Igawa as Hiro
  • Matt Wilkinson as Winston
  • Rasmus Hardiker as Philip
  • Bob Golding as Stephen and one of the Railroad Inspectors
  • Jonathan Broadbent as Bill and Ben
  • Tim Whitnall as Timothy and Reg
  • Rebecca O'Mara as Caitlin
  • Jonathan Forbes as Connor
  • David Bedella as Victor and the Mayor of Sodor
  • Teresa Gallagher as Belle, Mavis, Annie, Clarabel, Stephen Hatt, Bridget Hatt, Albert's Wife, the Blonde-haired Boy and the Blonde-haired Girl
  • Maggie Ollerenshaw as Henrietta
  • David Menkin as Porter and Stanley
  • Olivia Colman as Marion
  • Miranda Raison as the Knapford Station Speaker
  • Mike Grady as Sir Robert Norramby
  • Maple House Players as the Choir

Trivia

  • Every episode has a copyright of 2015.
  • This series marks the first of several things:
    • The first series to utilise the new intro, credits and Engine Roll Call remix.
    • The first series since the seventh where Duck speaks in only one episode.
    • The first series to have John Hasler, Joseph May, Nigel Pilkington, Christopher Ragland, Rob Rackstraw, Rasmus Hardiker, Ashna Kapur, Oliver McCue and the Maple House Players as part of the voice cast:
      • John Hasler and Joseph May take over the role of Thomas from Ben Small in the UK dub and Martin Sherman in the US dub.
      • Nigel Pilkington and Christopher Ragland take over the role of Percy from Keith Wickham in the UK dub and Martin Sherman in the US dub.
      • Rob Rackstraw takes over the role of James from Kerry Shale in the US dub and takes over the role of Toby from Ben Small in the UK dub.
    • The first series where David Bedella voices the Mayor of Sodor in the UK dub.
    • The first series without Michael Legge, Clive Mantle, Robert Wilfort and Tom Stourton as part of the voice cast since they joined the voice cast in Blue Mountain Mystery, Tale of the Brave and the previous series, respectively.
    • The first series to have episodes solely directed by a woman.
    • The first series to feature episodes written by Helen Farrall.
    • The first series to have three directors.
    • The first series to have library music played in an episode.
    • The first series since the sixteenth series and the sixth series overall where Thomas appears in every episode, as well as speaking in all of them since the fifteenth series. This was because of the franchise's 70th anniversary.
    • The first series since the third series where Thomas' red lining on the back of his cab was re-added.
    • Lord Callan's first appearance in CGI.
    • The first series in where Gator, Sidney, Millie, Slip Coaches and Merrick do not appear since their introductions.
    • The first series in where Charlie and Jack do not speak since their introductions.
    • The first series in where Harvey and the Skarloey Railway engines do not appear since their returns.
    • The first series to have a two-part episode, though not the first to feature a story arc that spans multiple episodes.
    • The first series to have a song featured in an episode, not sung by one of the characters.
    • The first series since the twelfth series to feature a member of the Pack in an episode.
    • The first series where 'Arry appears without Bert.
    • The first series to have an episode banned from airing on television, specifically Henry Spots Trouble in Australia.
    • The first series without one of the windmills in the intro sequence.
    • The first series not dubbed in Danish since the twelfth series.
    • The first series that Russian re-dub was never created since the fourteenth series.
    • The first series that the word "Whistle" is translated in Korean since the fifteenth series.
  • This is the only series for several things:
    • The only series where Samson and Daisy appear, but do not speak since their introductions.
    • The only series since their returns in Blue Mountain Mystery and the sixteenth series in which Skarloey and Peter Sam do not appear.
    • The only series where Luke and Owen do not appear since their introductions.
    • The only series where Belle speaks in more than one of her appearances.
    • The only series without the Blue Mountain Quarry since its introduction in Blue Mountain Mystery.
    • The only series to have a different number of episodes in the UK and US. The UK has 26 episodes while the US has 25. Diesel's Ghostly Christmas Parts 1 and 2 are combined into one long episode in the US.​​​​​​
    • The only series to have a story idea by Robin Gay.
  • This marks the last series of several things:
    • The last series with music composed by Robert and Peter Hartshorne. Chris Renshaw took over composing from Thomas & Friends in 4-D: Bubbling Boilers and The Great Race onwards.
    • The last series to air on Nick Jr. UK due to the show moving to Cartoonito for pay-TV broadcast in the UK. The final six episodes of this series were released direct-to-DVD before making their television debut on Cartoonito.
    • The last series to have episodes written by Nick Ostler and Mark Huckerby.
    • The last series to have Jonathan Broadbent and Rebecca O'Mara as part of the voice cast. Rasmus Hardiker and Matt Wilkinson took over the respective roles of Bill and Ben in Big World! Big Adventures!, while Jules de Jongh took over the role of Caitlin in this series.
    • The last series to be fully animated by Arc Productions prior to their bankruptcy.
    • The last series until the twenty-second series in which Thomas' name was mentioned in any of the episode titles. It is also the last series until the twenty-second series where Thomas speaks in every episode.
    • The last series aired by JimJam Polsat until the twenty-first series in Poland.
  • According to Ian McCue, the episodes on Dinos and Discoveries were going to be part of this series, but they instead were made for the eighteenth series. The episodes have unofficially been included under the production order for the nineteenth series in some countries.
  • The last six episodes were not sold with the nineteenth series block to Minimax, JimJam and TVNZ 2 and neither were they sold with the Series 20 block, meaning that they were never dubbed in these countries. The last six episodes of this series were never dubbed in Romanian, Hungarian, Slovenian, Serbian and Czech.
  • In the Estonian, Latvian, Lithuanian, Baltic Russian and Vietnamese voice-overs, the UK dub can be heard in the background as a dubbing track was not used.
  • In the Romanian, Norwegian, Estonian(voice-over), Latvian(voice-over), Lithuanian(voice-over), Hungarian, Serbian, Czech, Polish, Ukrainian, Baltic Russian(voice-over) Greek, Turkish, Indonesian, Thai, Chinese Mandarin, Taiwanese Mandarin and Cantonese dubs, credited Mark Moraghan as the narrator, even though they were re-dubbed their respective languages.
  • The DVDs of Start Your Engines!, credited Mark Moraghan as the narrator, even though they were re-dubbed their respective languages.
  • In the European Portuguese dub of JimJam airings, credited Mark Moraghan as the narrator, even though they were re-dubbed their respective language.
  • According to SiF on Twitter, the five DVD exclusive episodes were going to be part of the twentieth series but were made for this series instead.
  • From this series onwards, colours are brighter than in previous CGI series.
  • The Complete Series release is available in Amazon Prime in the United States. The DVD is available for purchase as well.
  • Viewers had to vote for the intro to the series.
  • Maron did not appear at all in the series.

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