- Britt Allcroft
- (creator) (1 episode, 2010-2020)
- Britt Allcroft
- (adaptation) (5 episodes, 2011)
- Britt Allcroft
- (television stories) (2 episodes, 2011)
- Britt Allcroft
- (creator) (1 episode, 2010-2020)
- Wilbert Awdry
- (railway series) (1 episode, 2010-2020)
- Andrew Brenner
- (head writer) (262 episodes, 2014-2020)
- Andrew Brenner
- (writer/head writer) (70 episodes, 2014-2020)
- Andrew Brenner
- (writer: "Spencer's VIP") (unknown episodes)
- Andrew Brenner
- (4 episodes, 2011-2020)
- Andrew Brenner
- (writer: "Toby's New Friend") (unknown episodes)
- Andrew Brenner
- (writer: "Marion and the Dinosaurs") (unknown episodes)
- Andrew Brenner
- (writer: "Missing Gator") (unknown episodes)
- Andrew Brenner
- (writer: "The Frozen Turntable") (unknown episodes)
- Andrew Brenner
- (writer: "The Smelly Kipper") (unknown episodes)
- Andrew Brenner
- (4 episodes, 2011-2020)
- Andrew Brenner
- (head writer: "A Cranky Christmas"/"Kangaroo Christmas"/"Emily in the Middle"/"Letters to Santa"/"Hunt the Car"/"Duncan the Humbug"/"The Afternoon Tea Express"/"Last Train for Christmas") (unknown episodes)
- Andrew Brenner
- (head writer: "Den and Dart"/"Who's Geoffrey?"/"Duck and the Slip Coaches"/"Scruff's Makeover"/"Old Reliable Edward"/"Henry's Hero") (unknown episodes)
- Andrew Brenner
- (head writer: "Emily in the Middle"/"No Snow for Thomas"/"Snow Place Like Home"/"The Frozen Turntable"/"The Beast of Sodor"/"Den and Dart") (unknown episodes)
- Andrew Brenner
- (head writer: "Gordon Runs Dry"/"Bill or Ben?"/"The Thomas Way"/"The Big Freeze"/"Duck and the Slip Coaches"/"Spencer's VIP") (unknown episodes)
- Andrew Brenner
- (head writer: "Henry in the Dark"/"All in Vain"/"Flatbeds of Fear") (unknown episodes)
- Andrew Brenner
- (head writer: "Last Train for Christmas"/"The Perfect Gift"/"Duncan the Humbug"/"Snow Place Like Home""No Snow for Thomas"/"A Cranky Christmas") (unknown episodes)
- Andrew Brenner
- (head writer: "Lost Property"/"Reds vs Blues"/"The Frozen Turntable"/"Scruff's Makeover"/"Signals Crossed"/"Den and Dart") (unknown episodes)
- Andrew Brenner
- (head writer: "Marion and the Pipe"/"Reds vs Blues"/"The Water Wheel"/"Slow Stephen"/"Duncan and the Grumpy Passenger"/"The Beast of Sodor") (unknown episodes)
- Andrew Brenner
- (head writer: "No Snow for Thomas"/"Terence Breaks the Ice"//"No More Mr Nice Engine"/"The Big Freeze"/"New Crane on the Dock"/"Toby's New Friend") (unknown episodes)
- Andrew Brenner
- (head writer: "Old Reliable Edward"/"Henry Spots Trouble"/"Apology Impossible"/"Spencer's VIP"/"Terence Breaks the Ice"/"Calm Down Caitlin") (unknown episodes)
- Andrew Brenner
- (head writer: "Reds vs Blues"/"Rosie is Red"/"Samson and the Fireworks") (unknown episodes)
- Andrew Brenner
- (head writer: "Samson at Your Service"/"Spencer's VIP"/"Flatbeds of Fear"/"Gordon Runs Dry"/"Bill or Ben?"/"Not Now, Charlie!"/"The Switch") (unknown episodes)
- Andrew Brenner
- (head writer: "Snow Place Like Home"/"What Rebecca Does"/"The Frozen Turntable"/"Emily in the Middle") (unknown episodes)
- Andrew Brenner
- (head writer: "The Afternoon Tea Express"/"Henry Gets the Express"/"All in Vain"/"Den and Dart"/"The Thomas Way"/"Helping Hiro") (unknown episodes)
- Andrew Brenner
- (head writer: "The Beast of Sodor"/"Daisy's Perfect Christmas"/"A Cranky Christmas"/"The Christmas Coffeepot"/"Snow Place Like Home"/"No Snow for Thomas"/"Hunt the Car"/"The Frozen Turntable") (unknown episodes)
- Andrew Brenner
- (head writer: "The Beast of Sodor"/"Unscheduled Stops"/"Bill or Ben?"/"Philip to the Rescue"/"Samson and the Fireworks"/"Snow Place Like Home") (unknown episodes)
- Andrew Brenner
- (head writer: "The Big Freeze"/"No Snow for Thomas"/"Den and Dart"/"The Fastest Red Engine on Sodor"/"The Truth About Toby"/"Henry Gets the Express"/"Emily in the Middle") (unknown episodes)
- Andrew Brenner
- (head writer: "The Frozen Turntable"/"Lost Property"/"Den and Dart"/"Samson and the Fireworks"/"Henry Gets the Express"/"Philip to the Rescue") (unknown episodes)
- Andrew Brenner
- (head writer: "The Perfect Gift"/"Letters to Santa"/"The Missing Christmas Decorations"/"Daisy's Perfect Christmas"/"Diesel's Ghostly Christmas - Part One"/"Diesel's Ghostly Christmas - Part Two"/"A Cranky Christmas"/"Hunt the Car"/"The Christmas Coffeepot"/"Kangaroo Christmas"/"Last Train for Christmas") (unknown episodes)
- Andrew Brenner
- (head writer: "The Phantom Express"/"Counting on Nia"/"The Smelly Kipper") (unknown episodes)
- Andrew Brenner
- (head writer: "The Smelly Kipper"/"Henry Gets the Express"/"Samson and the Fireworks"/"Mucking About"/"Slow Stephen") (unknown episodes)
- Andrew Brenner
- (head writer: "What Rebecca Does"/"Philip to the Rescue"/"The Missing Breakdown Train"/"Lost Property"/"Duncan and the Grumpy Passenger"/"No Steam Without Coal"/"Counting on Nia") (unknown episodes)
- Andrew Brenner
- (head writer: "Wild Water Rescue"/"Philip to the Rescue"/"Unscheduled Stops"/"Duncan and the Grumpy Passenger"/"The Frozen Turntable") (unknown episodes)
- Andrew Brenner
- (original story) (1 episode, 2011)
- Andrew Brenner
- (writer/head writer: "Old Reliable Edward"/"Disappearing Diesels") (unknown episodes)
- Andrew Brenner
- (writer: "Away From the Sea"/"Thomas' Shortcut"/"The Smelly Kipper") (unknown episodes)
- Andrew Brenner
- (writer: "Best Engine Ever"/"The Little Engine Who Raced Ahead") (unknown episodes)
- Andrew Brenner
- (writer: "Bill or Ben?"/"Philip to the Rescue") (unknown episodes)
- Andrew Brenner
- (writer: "Duck in the Water") (unknown episodes)
- Andrew Brenner
- (writer: "Duck in the Water"/"Thomas the Quarry Engine") (unknown episodes)
- Andrew Brenner
- (writer: "Forever and Ever") (unknown episodes)
- Andrew Brenner
- (writer: "Gone Fishing") (unknown episodes)
- Andrew Brenner
- (writer: "Gordon Runs Dry"/"Bill or Ben?"/"Spencer's VIP") (unknown episodes)
- Andrew Brenner
- (writer: "Hugo and the Airship") (unknown episodes)
- Andrew Brenner
- (writer: "Last Train for Christmas") (unknown episodes)
- Andrew Brenner
- (writer: "Last Train for Christmas"/"Missing Gator") (unknown episodes)
- Andrew Brenner
- (writer: "Millie and the Volcano") (unknown episodes)
- Andrew Brenner
- (writer: "Millie and the Volcano"/"Old Reliable Edward") (unknown episodes)
- Andrew Brenner
- (writer: "Old Reliable Edward") (unknown episodes)
- Andrew Brenner
- (writer: "Philip to the Rescue") (unknown episodes)
- Andrew Brenner
- (writer: "Philip to the Rescue"/"The Frozen Turntable") (unknown episodes)
- Andrew Brenner
- (writer: "Saving Time") (unknown episodes)
- Andrew Brenner
- (writer: "Spencer's VIP"/"Gordon Runs Dry"/"Bill or Ben?") (unknown episodes)
- Andrew Brenner
- (writer: "The Frozen Turntable"/"Philip to the Rescue") (unknown episodes)
- Andrew Brenner
- (writer: "The Missing Christmas Decorations"/"Last Train for Christmas") (unknown episodes)
- Andrew Brenner
- (writer: "Thomas and the Emergency Cable"/"Last Train for Christmas") (unknown episodes)
- Andrew Brenner
- (writer: "Thomas the Quarry Engine"/"Thomas and the Emergency Cable") (unknown episodes)
- Andrew Brenner
- (writer: "Thomas' Shortcut"/"Old Reliable Edward") (unknown episodes)
- Andrew Brenner
- (writer: "Too Many Fire Engines") (unknown episodes)
- Lee Pressman
- (1 episode, 2014-2020)
- Lee Pressman
- (writer: "Snow Place Like Home") (unknown episodes)
- Lee Pressman
- (writer: "Terence Breaks the Ice") (unknown episodes)
- Lee Pressman
- (writer: "Counting on Nia") (unknown episodes)
- Lee Pressman
- (writer: "Diesel and the Ducklings") (unknown episodes)
- Lee Pressman
- (writer: "Henry in the Dark") (unknown episodes)
- Lee Pressman
- (writer: "Samson and the Fireworks") (unknown episodes)
- Lee Pressman
- (writer: "New Crane on the Dock") (unknown episodes)
- Lee Pressman
- (writer: "New Crane on the Dock"/"Philip's Number") (unknown episodes)
- Lee Pressman
- (writer: "Philip's Number"/"A Shed for Edward") (unknown episodes)
- Lee Pressman
- (writer: "Salty All at Sea") (unknown episodes)
- Lee Pressman
- (writer: "Samson and the Fireworks") (unknown episodes)
- Lee Pressman
- (writer: "Samson and the Fireworks"/"Snow Place Like Home") (unknown episodes)
- Lee Pressman
- (writer: "School of Duck") (unknown episodes)
- Lee Pressman
- (writer: "Scruff's Makeover") (unknown episodes)
- Lee Pressman
- (writer: "Scruff's Makeover"/"Wayward Winston") (unknown episodes)
- Lee Pressman
- (writer: "Terence Breaks the Ice"/"New Crane on the Dock") (unknown episodes)
- Lee Pressman
- (writer: "Wayward Winston") (unknown episodes)
- Lee Pressman
- (writer: "Who's Geoffrey?") (unknown episodes)
- Lee Pressman
- (writer: "Who's Geoffrey?"/"Scruff's Makeover") (unknown episodes)
- Lee Pressman
- (writer: "Who's Geoffrey?"/"Snow Place Like Home") (unknown episodes)
- Lee Pressman
- (writer: "Who's Geoffrey?"/"Two Wheels Good") (unknown episodes)
- Becky Overton
- (1 episode, 2019-2020)
- Becky Overton
- (writer: "The Beast of Sodor") (unknown episodes)
- Becky Overton
- (writer: "Apology Impossible") (unknown episodes)
- Becky Overton
- (writer: "Wild Water Rescue") (unknown episodes)
- Becky Overton
- (writer: "Diesel's Ghostly Christmas - Part One"/"Diesel's Ghostly Christmas - Part Two") (unknown episodes)
- Becky Overton
- (writer: "Apology Impossible") (unknown episodes)
- Becky Overton
- (writer: "Diesel's Ghostly Christmas - Part Two") (unknown episodes)
- Becky Overton
- (writer: "The Beast of Sodor"/"Diesel's Ghostly Christmas - Part One") (unknown episodes)
- Becky Overton
- (writer: "Tiger Trouble") (unknown episodes)
- Becky Overton
- (writer: "Trusty Trunky"/"Thomas Goes to Bollywood") (unknown episodes)
- Becky Overton
- (writer: "Wild Water Rescue"/"Apology Impossible") (unknown episodes)
- Tim Bain
- (1 episode, 2019)
- Tim Bain
- (writer: "Banjo and the Bushfire") (unknown episodes)
- Tim Bain
- (writer: "Kangaroo Christmas") (unknown episodes)
- Tim Bain
- (writer: "Outback Thomas"/"Kangaroo Christmas") (unknown episodes)
- Michael White
- (1 episode, 2019)
- Michael White
- (writer: "Hunt the Car") (unknown episodes)
- Michael White
- (writer: "An Engine of Many Colors") (unknown episodes)
- Michael White
- (writer: "Hunt the Car") (unknown episodes)
- Davey Moore
- (uncredited) (117 episodes, 2014-2020)
- Davey Moore
- (writer: "Den and Dart") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Daisy's Perfect Christmas"/"Emily in the Middle") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Duncan the Humbug"/"Duncan and the Grumpy Passenger") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Samson at Your Service") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Missing Breakdown Train") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Calm Down Caitlin") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Daisy's Perfect Christmas") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Den and Dart"/"The Truth About Toby"/"Emily in the Middle") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Duncan and the Grumpy Passenger") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Duncan the Humbug"/"Duncan and the Grumpy Passenger"/"No Steam Without Coal") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Emily in the Middle"/"Den and Dart") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Emily in the Middle"/"Duncan the Humbug") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Henry Spots Trouble") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Henry Spots Trouble"/"Calm Down Caitlin") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Henry Spots Trouble"/"The Truth About Toby"/"The Water Wheel"/"Rocky Rescue") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Luke's New Friend") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Mucking About") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "No Steam Without Coal"/"Toad's Bright Idea") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Number One Engine"/"Rosie is Red") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Reds vs Blues") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Reds vs Blues"/"Den and Dart") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Reds vs Blues"/"Rosie is Red") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Reds vs Blues"/"The Water Wheel"/"Duncan and the Grumpy Passenger") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Samson at Your Service"/"Not Now, Charlie!"/"The Switch") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Springtime for Diesel"/"A Most Singular Engine") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Perfect Gift") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Perfect Gift"/"Daisy's Perfect Christmas") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Perfect Gift"/"Duncan the Humbug") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Perfect Gift"/"No Steam Without Coal") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Railcar and the Coaches"/"Love Me Tender") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Switch"/"Not Now, Charlie!") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "The Truth About Toby") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Thomas in the Wild") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Timothy and the Rainbow Car") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Timothy and the Rainbow Car"/"Samson at Your Service") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "Toad's Bright Idea") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "What Rebecca Does") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "What Rebecca Does"/"Emily in the Middle") (uncredited) (unknown episodes)
- Davey Moore
- (writer: "What Rebecca Does"/"The Missing Breakdown Train"/"Duncan and the Grumpy Passenger"/"No Steam Without Coal") (uncredited) (unknown episodes)
- Davey Moore
- (writer: Thomas and the Dragon"/"Confusion Without Delay") (uncredited) (unknown episodes)
- Sharon Miller
- (writer/head writer) (uncredited) (38 episodes, 2011-2020)
- Sharon Miller
- (head writer) (uncredited) (50 episodes, 2010-2020)
- Sharon Miller
- (uncredited) (99 episodes, 2010-2020)
- Sharon Miller
- (writer: "Percy and the Monster of Brendam") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Henry's Happy Coal") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Up, Up and Away!") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Edward the Hero"/"Flash Bang Wallop!"/"Ol' Wheezy Wobbles") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Flash Bang Wallop!"/"Bust My Buffers!"/"Wonky Whistle"/"Percy and the Monster of Brendam") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Flash Bang Wallop!"/"Kevin the Steamie"/"James to the Rescue") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Henry's Happy Coal") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Henry's Happy Coal"/"Wonky Whistle") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Ho Ho Snowman") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Ho Ho Snowman"/"Let it Snow") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Ho Ho Snowman"/"Ol' Wheezy Wobbles"/"Henry's Happy Coal") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Ho Ho Snowman"/"Percy the Snowman"/"Let it Snow") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Ho Ho Snowman"/"Tree Trouble") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Kevin the Steamie") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Kevin the Steamie"/"Henry's Happy Coal") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Let it Snow"/"Emily and Dash"/"Wonky Whistle") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Percy and the Monster of Brendam"/"Toby and the Whistling Woods") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Percy the Snowman") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Percy the Snowman"/"Percy and the Monster of Brendam") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Pop Goes Thomas"/"Up, Up and Away!") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Toby and the Whistling Woods") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Tree Trouble"/"Ho Ho Snowman") (uncredited) (unknown episodes)
- Sharon Miller
- (head writer: "Up, Up and Away!") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Bust My Buffers!"/"Percy and the Monster of Brendam"/"Don't Bother Victor!") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Edward the Hero"/"Ol' Wheezy Wobbles") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Happy Birthday Sir!") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Ho Ho Snowman") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Ho Ho Snowman"/"Let it Snow") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Ho Ho Snowman"/"Let it Snow"/"The Christmas Tree Express") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Ho Ho Snowman"/"Ol' Wheezy Wobbles"/"Henry's Happy Coal") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Ho Ho Snowman"/"Tree Trouble"/"The Christmas Tree Express") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "James to the Rescue") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "Let it Snow"/"Emily and Dash") (uncredited) (unknown episodes)
- Sharon Miller
- (writer: "The Christmas Tree Express") (uncredited) (unknown episodes)
- Helen Farrall
- (uncredited) (58 episodes, 2015-2020)
- Helen Farrall
- (writer: "Lost Property") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Slow Stephen") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "The Big Freeze") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Confused Coaches") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "The Christmas Coffeepot"/"Over the Hill") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Unscheduled Stops") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "All in Vain") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "All in Vain"/"Unscheduled Stops") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Henry Gets the Express"/"All in Vain") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Henry Gets the Express"/"Slow Stephen") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Letters to Santa") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Letters to Santa"/"Henry Gets the Express") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Letters to Santa"/"The Christmas Coffeepot") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Lost Property"/"Henry Gets the Express") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "The Big Freeze"/"The Fastest Red Engine on Sodor"/"Henry Gets the Express") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "The Big Freeze"/"Unscheduled Stops") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "The Christmas Coffeepot") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "The Fastest Red Engine on Sodor") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "The Fastest Red Engine on Sodor"/"The Big Freeze") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Toad and the Whale"/"Very Important Sheep") (uncredited) (unknown episodes)
- Helen Farrall
- (writer: "Unscheduled Stops"/"The Fastest Red Engine on Sodor") (uncredited) (unknown episodes)
- Laura Beaumont
- (uncredited) (57 episodes, 2014-2020)
- Laura Beaumont
- (writer: "No Snow for Thomas") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "Flatbeds of Fear") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "Emily Saves the World") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "Henry's Hero") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "No More Mr Nice Engine") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "No Snow for Thomas"/"No More Mr Nice Engine") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "Not So Slow Coaches") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "Not So Slow Coaches"/"Flatbeds of Fear") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "The Afternoon Tea Express") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "The Afternoon Tea Express"/"Henry's Hero") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "The Afternoon Tea Express"/"The Thomas Way") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "The Phantom Express") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "The Thomas Way") (uncredited) (unknown episodes)
- Laura Beaumont
- (writer: "The Thomas Way"/"The Phantom Express") (uncredited) (unknown episodes)
- Paul Larson
- (uncredited) (57 episodes, 2014-2020)
- Paul Larson
- (writer: "No Snow for Thomas") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "Flatbeds of Fear") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "Emily Saves the World") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "Henry's Hero") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "No More Mr Nice Engine") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "No Snow for Thomas"/"No More Mr Nice Engine") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "Not So Slow Coaches") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "Not So Slow Coaches"/"Flatbeds of Fear") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "The Afternoon Tea Express") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "The Afternoon Tea Express"/"Henry's Hero") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "The Afternoon Tea Express"/"The Thomas Way") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "The Phantom Express") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "The Thomas Way") (uncredited) (unknown episodes)
- Paul Larson
- (writer: "The Thomas Way"/"The Phantom Express") (uncredited) (unknown episodes)
- Mark Huckerby
- (uncredited) (40 episodes, 2015-2020)
- Mark Huckerby
- (writer: "A Cranky Christmas") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Helping Hiro") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Marion and the Pipe") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Duck and the Slip Coaches") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Long Lost Friend") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Samson Sent for Scrap") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Signals Crossed") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Signals Crossed"/"Toad's Adventure"/"Duck and the Slip Coaches") (uncredited) (unknown episodes)
- Mark Huckerby
- (writer: "Toad's Adventure"/"Duck and the Slip Coaches") (uncredited) (unknown episodes)
- Nick Ostler
- (uncredited) (40 episodes, 2015-2020)
- Nick Ostler
- (writer: "A Cranky Christmas") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Helping Hiro") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Marion and the Pipe") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Duck and the Slip Coaches") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Long Lost Friend") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Samson Sent for Scrap") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Signals Crossed") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Signals Crossed"/"Toad's Adventure"/"Duck and the Slip Coaches") (uncredited) (unknown episodes)
- Nick Ostler
- (writer: "Toad's Adventure"/"Duck and the Slip Coaches") (uncredited) (unknown episodes)
- Max Allen
- (writer: "Emily's Winter Party Special") (uncredited) (unknown episodes)
- Max Allen
- (writer: "Percy and the Calliope") (uncredited) (unknown episodes)
- Max Allen
- (uncredited) (8 episodes, 2019-2020)
- David Mitton
- (adaptation) (uncredited) (5 episodes, 2011)
- David Mitton
- (television stories) (uncredited) (1 episode, 2011)
- David Mitton
- (television story) (uncredited) (1 episode, 2011)
- Rachel Dawson
- (uncredited) (6 episodes, 2011-2012)
- Allan Plenderleith
- (uncredited) (5 episodes, 2011-2014)
- Louise Kramskoy
- (uncredited) (5 episodes, 2012-2020)
- Louise Kramskoy
- (writer: "Toby and the Whistling Woods") (uncredited) (unknown episodes)
- Gerard Foster
- (uncredited) (5 episodes, 2013-2020)
- Gerard Foster
- (writer: "Thomas and the Sounds of Sodor") (uncredited) (unknown episodes)
- Jessica Sandys Clarke
- (writer: "Flash Bang Wallop!") (uncredited) (unknown episodes)
- Jessica Sandys Clarke
- (uncredited) (5 episodes, 2020)
- Mark Robertson
- (uncredited) (4 episodes, 2010-2020)
- Mark Robertson
- (writer: "Pop Goes Thomas") (uncredited) (unknown episodes)
- Andy Bernhardt
- (writer: "Whiff's Wish") (uncredited) (unknown episodes)
- Andy Bernhardt
- (uncredited) (4 episodes, 2019-2020)
- Lizzie Ennever
- (writer: "Percy the Snowman") (uncredited) (unknown episodes)
- Lizzie Ennever
- (uncredited) (4 episodes, 2019-2020)
- Neil Ben
- (writer: "Wonky Whistle") (uncredited) (unknown episodes)
- Neil Ben
- (uncredited) (4 episodes, 2020)
- Laurie Israel
- (writer: "Kevin the Steamie") (uncredited) (unknown episodes)
- Laurie Israel
- (uncredited) (4 episodes, 2020)
- Rachel Ruderman
- (writer: "Kevin the Steamie") (uncredited) (unknown episodes)
- Rachel Ruderman
- (uncredited) (4 episodes, 2020)
- Alan Hescott
- (uncredited) (3 episodes, 2011-2014)
- Miranda Larson
- (uncredited) (2 episodes, 2012)
- Dan Wicksman
- (uncredited) (2 episodes, 2019-2020)
- Dan Wicksman
- (writer: "Thomas Toots the Crows") (uncredited) (unknown episodes)
- Nuria Wicksman
- (uncredited) (2 episodes, 2019-2020)
- Nuria Wicksman
- (writer: "Thomas Toots the Crows") (uncredited) (unknown episodes)
- Andrew Viner
- (uncredited) (1 episode, 2020)