Percy

"No one listens to me now. They think I'm a silly little engine and order me about. I'll show them! I'll show them!"

- Percy

Percy is a cheeky green saddle tank engine who was brought to Sodor to help run the railway during the big engines' strike. His favourite job is to deliver the mail. He works on Thomas' Branch Line as a goods engine.

The Railway Series
Percy was most likely built by the Avonside Engine Company sometime around the 1900's and has gone through a subsequent rebuild in the before he was sold second-hand to the North Western Railway by a factory on the Mainland. He is said to have been found to contain Hunslet parts, among others, according to workers at Crovan's Gate.

When Gordon, James and Henry went on strike in protest of the extra work they had to do since Thomas left to run his branch line, the Fat Controller decided that the railway needed another tank engine. Going to the engine workshop, the Fat Controller saw a green saddle tank and when the engine confirmed he was willing to work hard, the Fat Controller bought him and named him Percy. Bringing him back to Sodor, Percy was charged with running the branch line while Thomas ran the Main Line with Edward and was allowed to stay after the big engines surrendered and returned to work. At first, Percy liked to annoy the big engines. Percy was later waiting at Tidmouth, but forgot to whistle to the signalman, and thus was startled when Gordon came running towards him with the express. Gordon managed to stop in time, but Percy was so frightened, he ran away and ended up stuck in a sandbank. He was rescued by Gordon and took up the duty of station pilot at Tidmouth.

Percy was still a cheeky engine and often liked to play jokes on Gordon and James, but one day the other engines got their revenge when Percy failed to recognise a "backing signal." After this, Percy was subject to bullying from the big engines until Duck arrived and helped Percy to put the big engines in their place, although Percy still received a reprimand from the Fat Controller for it.

With Duck's arrival, Percy was sent to Thomas' Branch Line to help build Knapford Harbour and has stayed there ever since as a goods engine. He met a self-centred white helicopter named Harold who said that railways were "slow and out-of-date," so he decided, to race him, of which he won. When Percy had to take the Sunday School children home, he came across a flooded paddock which swashed away his fire. Thankfully, with a little help from Harold, who had dropped supplies of hot drinks for his crew and the passengers, he was able to get the children home.

Despite being really useful, Percy was prone to having accidents, sometimes for acting naughty, and others for carelessness. He was naughty when he asked the trucks to push him past a danger notice, only to end up in the water until he could be lifted out and taken to the works by Henry. When a diesel railcar named Daisy came to look after Thomas' Branch Line, she constantly kept leaving behind the milk van every time Percy shunted it for her. Fed up with taking the milk for her, Percy offered to take Toby's trucks for him while he took the milk. However, the trucks were unfamiliar with Percy, and when he ordered them about, they decided to seek revenge by pushing him onto a line of stone trucks.

Thomas & Friends
One winter, the cold was severely getting to Percy, so he tried to think about warm things. As a result, his workday led to Percy obsessing over scarves and seeing everyone around him wearing them. Henry remarked on the silliness of an engine wanting a scarf, but Percy bit back with a comment about Henry's funnel size. The cold did not affect Percy's cheekiness however, as he planned on startling the coaches by coming in quietly. However, the porters didn't hear him either, and Percy crashed into their luggage trolley, ending up covered in jam with the Fat Controller's hat on Percy's lamp iron and his best trousers wrapped around Percy's funnel. James joked that Percy found a 'scarf' after all and ran off to tell Henry. That night, Thomas and a clean Percy prepared to go to sleep happy that the firelighter had agreed to arrive earlier the next day. Henry and Percy make up, and Henry assures Percy that the weather will be warmer the following day.

In Tale of the Brave, Thomas told Percy about some mysterious footprints that he saw at the China Clay Pits. Percy convinced himself that it was be footprints of a monster that was roaming Sodor. Continuing to be anxious for a few days, he caused lots of confusion and delay such as: mistakenly referring to Gator, the new engine as the monster, failing to delivery his mail on-time and running off before the Fat Controller finished talking to him. After talking with his new friend Gator, he understood what being brave is like and later used this courage to save James from a huge landslide. He later learned that the monster was really a dinosaur a long, long time ago, which had now become a fossil. He also understood that the footprints Thomas saw, were also only fossils left from the dinosaur. Percy later said goodbye to Gator, who had to return to the mainland, but the two friends were certain they will meet again someday.

In the eighteenth season, Percy was starting to miss Gator and tried to forget him by working hard and not think about him. When he had to deliver trucks full of precious sculptures and paintings for a special exhibition, he did not stop to be coupled and the Troublesome Trucks went rolling to the Old Mine. He thought about Gator and his advice of how to be brave. Percy goes into the mine and rescues the trucks. Percy reunited with Gator at Christmas.

In the nineteenth season, he was to take the Mayor of Sodor to the Search and Rescue Centre to present a new alarm bell to celebrate their one thousandth rescue. Diesel overheard Percy talking about it at the Docks and he played a trick on him, sending Percy to the Old Quarry which resulted him ending up on a badly flooded railway line and after Diesel unsuccessfully attempted to pull him out of the flood, he too also ended up getting stuck in the water after it badly damaged his generator. The rescue of Diesel and Percy marked the Sodor Search and Rescue Centre Crew's one thousand and first rescue. He was once giving the job of transporting Farmer McColl's ewes to a fair at Maithwaite, however he was late delivering that nights mail. Rushing to get back on time, he bashed his lifestock wagon into a flatbed, and unknowingly created a hole in it. He collected the sheep from McColl Farm, but every time he stopped some of the sheep escaped. By the time he had reached the fair, all the sheep had escaped. Fortunately, Thomas, Annie and Clarabel arrived shortly afterwards with the sheep, much to Percy's relief. Once, he saw some painters at Knapford, talking about the Fat Controller "leaving." He told Thomas and the other engines, and they came to the conclusion he was leaving Sodor because of them, so they decided to create no confusion and delay until he decided to stay. By the end of the day, it appeared their plan was successful, though Percy still had his doubts. His suspicions were seemingly confirmed when he saw the painters clearing out the Fat Controller's office. Now believing the Fat Controller was being forced to leave, the engines decided to go on strike until he was allowed to stay. After much confusion and delay, the Fat Controller explained to the engines that he was just moving to a temporary office while his was being redecorated. With the misunderstanding cleared up, Percy and the other engines worked hard to get the railway back on schedule.

In the twentieth season, he had the job of taking the Christmas Mail to Vicartown for Hiro to take to the Mainland and onwards to the North Pole. Harold offered to help, but Percy refused, determined complete the job on his own. After he left a bag of letters behind at Dryaw, Harold chased after him, but Percy, believing he was mocking his speed again, refused to stop and crashed into a snowdrift at a tunnel. Stuck, he reluctantly agreed to let Harold deliver the Mail. The following day, he heard from Toby that Harold had not returned to Sodor that night, so he raced off to the Mainland to find him. He found him stuck in a field and out of fuel. Not wanting Harold to spend Christmas stranded and alone, he fetched his fuel and the two returned to Sodor. Later, Percy was taking the Mail Train at night, when he came across the Watermill bridge and heard a moaning sound which gave him a fright. Percy later told Thomas and Toby about it, and remembering the story of The Three Billy Goats Gruff, he thought it's a troll that lives under the bridge. The three engines reluctantly crossed the bridge and discovered it was only a lost cow. He was also the only engine to be nice to Hugo, who was being shunned as the others though he had come to replace them. He would then see a Zeppelin in the sky and question how Hugo could be in the sky as well as on the rails.

In The Great Race, Percy took Thomas' place in the shunting competition of The Great Railway Show after Thomas had an accident and was left on Sodor. However, Thomas managed to make it to the Mainland after all and Percy dropped out of the competition so his best friend could compete, and because he didn't want to compete in the first place.

Thomas & the Magic Railroad
In the film, Percy overheard Mr. Conductor talking in his sleep. Later, he arrived at Knapford with his Mail Train, he told Thomas about Mr. Conductor and conclude that he travels on Sodor to the magic railroad. Thomas told Percy about the missing truck and realised that the buffers leading to the magic railroad and told Percy to guard the buffers to be a brave engine. Sometime afterwards, Percy found Splatter and Dodge at the magic buffers and raced to warn Thomas, telling him to get Lily back to Muffle Mountain before Diesel 10 destroyed the magic railroad.

Personality
Percy is a rather cheeky, but kind engine, and generally behaves well, except when he is getting into mishaps from being over-eager. He loves teasing the others, especially the bigger engines, such as Gordon and James, but is always brought down to earth in due course by anyone who gives him the moral to learn, especially the Fat Controller.

As the television series has progressed, Percy has been dumbed-down in order to teach viewers difficult words: he would say "dingy-fried" where anyone else would say "dignified", "demonstration" into "dimer-station", "railway inspector" into "railway inspectacles", "new-fangled nonsense" into "new-funneled nuisance", "action" into "acton", or "V.I.P." into "V eyed-p". He is also shown to make silly mistakes, but then fix them upon realising what he has done before further damage is caused.

Percy is incredibly accident-prone and has many accidents, sometimes due to his own silliness or his tricks backfiring. He holds the dubious record of the most accidents in one season - five, in the second season - crashing into some buffers, falling into the sea, being pushed onto a brake van, colliding with a cart, and being hit by a falling crate of treacle. So far, his silliest accident yet was in the sixth season, when he slipped on oily rails and crashed through the chocolate factory and emerged covered in chocolate. Despite this, he always tries to do his best, learn from his mistakes and get his jobs done, a loyalty which Sir Topham Hatt has praised him for on several occasions.

Although their friendship has been turbulent at times, Thomas is generally portrayed as Percy's best friend, he is also good friends with Toby as well.

Since the second season, Percy has had a small rivalry with Harold, stemming from their race. However, they are always willing to help each other when in trouble.

He also had held a grudge from the big engines about their tricking him into misinterpreting a signal, but silenced this with some help from Duck. This shows that, when nonsense goes too far, Percy will not stand for it and seek help to settle the matter for good, even if he faces a reprimanding from Sir Topham Hatt for it.

Basis
Percy is based on a hybrid of a GWR No. 1340 Trojan's shape and a GWR 1361 Class's bunker, with Hunslet underframes and valve gear, a smokebox protruding from his saddletank, external cylinders and motion, and sandboxes underneath the tanks on his footplate. He was likely built or rebuilt with leftover parts.

Modifications made to Percy's shape include the angled smokebox supports and possibly a coal bunker.

Livery
Percy is painted in the North Western Railway's green livery with red and yellow lining and the number "6" painted on his bunker sides in yellow.

In the Railway Series, he carries two builder's plates, one on either side of his cab.

Appearances
Railway Series= {{Scroll box|

The Railway Series

 * Troublesome Engines - Trouble in the Shed and Percy Runs Away
 * Henry the Green Engine - Coal (cameo), Gordon's Whistle and Percy and the Trousers
 * Toby the Tram Engine - Dirty Objects
 * Gordon the Big Engine - Off the Rails and Paint Pots and Queens
 * Edward the Blue Engine - Old Iron (not seen)
 * Percy the Small Engine - Percy and the Signal, Duck Takes Charge, Percy and Harold and Percy's Promise
 * The Eight Famous Engines - Percy Takes the Plunge and The Fat Controller's Engines
 * The Twin Engines - The Deputation
 * Branch Line Engines - Thomas Comes to Breakfast, Daisy, Bulls Eyes (does not speak) and Percy's Predicament
 * Stepney the "Bluebell" Engine - Bluebells of England, Stepney's Special (cameo), Train Stops Play and Bowled Out
 * Tramway Engines - Ghost Train, Woolly Bear and Mavis (mentioned)
 * Really Useful Engines - Mind that Bike and Triple-Header
 * More About Thomas the Tank Engine - Thomas, Percy and the Coal, The Runaway (mentioned) and Drip Tank
 * Toby, Trucks and Trouble - Mavis and the Lorry (does not speak), Toby's Seaside Holiday (mentioned), Bulstrode and Toby Takes the Road
 * Thomas and the Twins - Scrambled Eggs (does not speak)
 * Thomas and the Great Railway Show - Museum-Piece
 * Thomas Comes Home - Snow Problem (mentioned), Washout!, Toby's Megatrain and Thomas Comes Home (cameo)
 * Wilbert the Forest Engine - Percy's Porridge, Foaming at the Funnel (mentioned) and Wired-Up (does not speak)
 * Thomas and the Fat Controller's Engines - Birdstrike, Rabbits (does not speak) and Golden Jubilee (does not speak)
 * Thomas and Victoria - Eels On Wheels
 * Thomas and his Friends - Centenary
 * Thomas's Christmas Party
 * Thomas and the Evil Diesel
 * Thomas and the Hurricane

Companion volumes
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 * 1972 - The Railway Series: Surprise Packet
 * 1976 - Famous Engines and Railway Map of the Island of Sodor
 * 1984 - Thomas's Christmas Party (does not speak)
 * 1986 - Thomas and the Missing Christmas Tree
 * 1987 - The Island of Sodor: Its People, History and Railways
 * 1996 - Thomas the Tank Engine: The Complete Collection
 * 2005 - Sodor: Reading Between the Lines
 * 2007 - Thomas the Tank Engine: The New Collection
 * Season 1 - Trouble in the Shed, Percy Runs Away, Whistles and Sneezes, Dirty Objects, Off the Rails and Thomas' Christmas Party
 * Season 2 - Thomas, Percy and the Coal, Cows (does not speak), Saved from Scrap (cameo), Old Iron, Percy and the Signal, Duck Takes Charge, Percy and Harold, The Runaway (does not speak), Percy Takes the Plunge, Pop Goes the Diesel, A Close Shave (cameo), The Deputation, Thomas Comes to Breakfast, Daisy, Percy's Predicament, Ghost Train, Woolly Bear and Thomas and the Missing Christmas Tree (does not speak)
 * Season 3 - A Scarf for Percy, Percy's Promise, Time for Trouble, Gordon and the Famous Visitor, Donald's Duck (cameo), Thomas Gets Bumped, Thomas, Percy and the Dragon, Diesel Does it Again, The Trouble with Mud (cameo), No Joke for James, Thomas, Percy and the Post Train, Trust Thomas (does not speak), Toby's Tightrope, All at Sea, Tender Engines (cameo), Escape (cameo), Oliver Owns Up, Bulgy (cameo), Percy, James and the Fruitful Day and Thomas and Percy's Christmas Adventure
 * Season 4 - Granpuff, Sleeping Beauty, Bulldog, Four Little Engines (cameo), A Bad Day for Sir Handel (cameo), Trucks! (cameo), Rock 'n' Roll (cameo), Steam Roller (cameo), Passengers and Polish (cameo), Gallant Old Engine (cameo), Rusty to the Rescue (does not speak), Thomas and Stepney, Train Stops Play, Bowled Out, Henry and the Elephant, Toad Stands By, Bulls Eyes (cameo), Thomas and the Special Letter, Paint Pots and Queens, Fish (cameo), Special Attraction and Mind that Bike
 * Season 5 - Cranky Bugs, Horrid Lorry, A Better View for Gordon, Lady Hatt's Birthday Party, James and the Trouble with Trees, Gordon and the Gremlin, Bye George!, Baa!, Put Upon Percy, Toby and the Flood, Double Teething Troubles, Thomas, Percy and Old Slowcoach, Thomas and the Rumours, Oliver's Find (mentioned), Happy Ever After, Sir Topham Hatt's Holiday (does not speak), A Surprise for Percy, Make Someone Happy, Busy Going Backwards (cameo), Rusty and the Boulder and Snow
 * Season 6 - No Sleep for Cranky, Salty's Secret (cameo), Harvey to the Rescue, A Bad Day for Harold the Helicopter, The Fogman, It's Only Snow (cameo), The World's Strongest Engine, Scaredy Engines, Percy and the Haunted Mine, Middle Engine, James and the Red Balloon, Jack Frost, Gordon Takes a Tumble, Percy's Chocolate Crunch, Thomas, Percy and the Squeak, Thomas the Jet Engine and Edward the Very Useful Engine
 * Season 7 - Emily's New Coaches (does not speak), Percy Gets it Right, Bill, Ben and Fergus (cameo), Edward's Brass Band (cameo), What's the Matter with Henry?, James and the Queen of Sodor, The Spotless Record, Toby's Windmill (main role replaced with Toby), Bad Day at Castle Loch, Salty's Stormy Tale, Something Fishy (does not speak), Peace and Quiet (cameo), Fergus Breaks the Rules (cameo), Bulgy Rides Again (cameo), Harold and the Flying Horse, Best Dressed Engine, Gordon and Spencer (cameo), Not So Hasty Puddings (cameo) and Three Cheers for Thomas
 * Jack and the Sodor Construction Company - Percy's Scary Tale, A Happy Day for Percy, Thomas and the Moles (cameo) and Percy Helps Out
 * Season 8 - Thomas and the Tuba, Percy's New Whistle, Thomas to the Rescue (does not speak), Henry and the Wishing Tree (cameo), James Gets a New Coat, Thomas Saves the Day (stock footage cameo), Percy's Big Mistake, Thomas, Emily and the Snowplough (cameo), Don't Tell Thomas, Emily's New Route (deleted scene), Gordon Takes Charge, Spic and Span, Edward the Great, Thomas and the Circus, Thomas Gets it Right (cameo), As Good as Gordon (cameo), Halloween, You Can Do it, Toby!, Chickens to School (does not speak), Too Hot for Thomas, James Goes Too Far and Percy and the Magic Carpet
 * Season 9 - Percy and the Oil Painting, Thomas and the Rainbow, Molly's Special Special, Thomas' Milkshake Muddle (cameo), Thomas and the Toy Shop (cameo), Respect for Gordon, Thomas and the Birthday Picnic, Thomas and the New Engine, Toby Feels Left Out, Thomas Tries His Best (does not speak), Thomas and the Statue, Emily Knows Best, Thomas' Day Off, Bold and Brave (deleted scene), Thomas and the Golden Eagle, Keeping up with James (cameo) and Flour Power (toy cameo)
 * Season 10 - Thomas and the Jet Plane, Percy and the Funfair, The Green Controller, Toby's Afternoon Off (cameo), It's Good to be Gordon (cameo), Toby's New Shed, Edward Strikes Out, Thomas and the Shooting Star, Big Strong Henry, Sticky Toffee Thomas, Thomas' Frosty Friend, Emily and the Special Coaches (cameo), Thomas and the Colours (cameo), Thomas and the Treasure (cameo) and James the Second Best
 * Season 11 - Thomas and the Storyteller, Dream On (does not speak), Dirty Work, Gordon and the Engineer (cameo), Thomas and the Spaceship, Henry's Lucky Day (cameo), Thomas and the Lighthouse (does not speak), Thomas and the Big Bang (does not speak), Thomas Sets Sail (does not speak), Don't be Silly, Billy, Edward and the Mail, Hide and Peep, Toby's Triumph, Thomas and the Runaway Car, Thomas in Trouble and Percy and the Left Luggage
 * Season 12 - Thomas and the Billboard (does not speak), Henry Gets it Wrong, Heave Ho Thomas!, Saved You! (speaks only in Japanese dub, does not speak in other dubs), Tram Trouble (cameo), Percy and the Bandstand and Best Friends
 * Season 13 - Creaky Cranky (cameo), The Lion of Sodor, Tickled Pink, Double Trouble (cameo), Slippy Sodor (role cut), The Early Bird, Play Time, Thomas and the Pigs, Percy's Parcel, Toby's New Whistle, Thomas and the Runaway Kite, Steamy Sodor, The Biggest Present of All, Snow Tracks, Henry's Good Deeds, Buzzy Bees (cameo) and Hiro Helps Out
 * Season 14 - Thomas' Tall Friend, James in the Dark (mentioned), Pingy Pongy Pick Up, Charlie and Eddie (cameo), Toby and the Whistling Woods (cameo), Henry's Health and Safety, Diesel's Special Delivery (cameo), Victor Says Yes, Thomas in Charge, Merry Winter Wish, Being Percy, Henry's Magic Box, Thomas and the Snowman Party, Thomas' Crazy Day, Thomas and Scruff and Merry Misty Island
 * Season 15 - Percy's New Friends, Edward the Hero, James to the Rescue, Happy Hiro, Up, Up and Away!, Henry's Happy Coal (incorrectly mentioned in Norwegian version), Surprise, Surprise, Spencer the Grand, Stop That Bus! (cameo), Big Belle (cameo), Kevin the Steamie, Percy the Snowman, Tree Trouble and Fiery Flynn (cameo)
 * Season 16 - Ol' Wheezy Wobbles (does not speak), Express Coming Through (does not speak), Percy and the Monster of Brendam, Ho Ho Snowman (cameo), Flash Bang Wallop!, Bust My Buffers! (cameo), Percy and the Calliope, Thomas and the Sounds of Sodor, Salty's Surprise (cameo), Sodor Surprise Day (cameo), Emily's Winter Party Special (cameo), Muddy Matters, Whiff's Wish and Welcome Stafford (cameo)
 * Season 17 - Scruff's Makeover, Wayward Winston, Gordon Runs Dry, Calm Down Caitlin, Steamie Stafford, Not Now, Charlie!, The Phantom Express, Percy's Lucky Day, Too Many Fire Engines (cameo), No Snow for Thomas, The Missing Christmas Decorations, The Frozen Turntable, Away From the Sea (cameo), The Smelly Kipper and Thomas' Shortcut
 * Season 18 - Old Reliable Edward, Flatbeds of Fear (cameo), Disappearing Diesels, Signals Crossed (cameo), Toad's Adventure, Duck in the Water (cameo), Duck and the Slip Coaches, Marion and the Pipe, Missing Gator, Spencer's VIP, Toad's Bright Idea, Long Lost Friend, Last Train for Christmas, Duncan the Humbug (cameo), The Perfect Gift, Timothy and the Rainbow Truck (cameo) and Samson at Your Service
 * Season 19 - Who's Geoffrey?, The Truth About Toby, Lost Property (cameo), Toad and the Whale (cameo), Very Important Sheep, Helping Hiro, Snow Place Like Home, The Beast of Sodor, A Cranky Christmas (cameo), Diesel's Ghostly Christmas (does not speak), Two Wheels Good (cameo), Reds vs. Blues, Best Engine Ever, The Little Engine Who Raced Ahead, Philip to the Rescue, Thomas the Babysitter (cameo), The Other Side of the Mountain, Goodbye Fat Controller and Wild Water Rescue
 * Season 20 - Sidney Sings, Toby's New Friend (cameo), Henry Gets the Express (cameo), Diesel and the Ducklings, Bradford the Brake Van, Pouty James, Letters to Santa, The Christmas Coffeepot, Henry in the Dark, Three Steam Engines Gruff, Engine of the Future, Hugo and the Airship and All in Vain
 * Season 21 - Springtime for Diesel, A Most Singular Engine, Dowager Hatt's Busy Day, Stuck in Gear (cameo), P.A. Problems, Hasty Hannah, Cranky at the End of the Line, New Crane on the Dock, Philip's Number (does not speak), A Shed for Edward and The Big Freeze
 * Other - Thomas & Friends in 4-D: Bubbling Boilers (cameo)

Specials:
 * Thomas and the U.K. Trip
 * Thomas and the Magic Railroad
 * Calling All Engines!
 * The Great Discovery
 * Hero of the Rails
 * Misty Island Rescue
 * Day of the Diesels
 * Blue Mountain Mystery
 * King of the Railway
 * Tale of the Brave
 * The Adventure Begins (indirectly mentioned)
 * Sodor's Legend of the Lost Treasure
 * The Great Race
 * Journey Beyond Sodor
 * Big World! Big Adventures!

Learning Segments:

Models:
 * Season 8 - Being on Time, Truck Trouble, Helping One Another (cameo) & What Makes Percy Feel Better?
 * Season 9 - Same Colour, Getting to Bluff's Cove (speaking sole), Percy in the Dark, Knowing What To Do, Getting Up Gordon's Hill & What Goes Where? (cameo)
 * Season 10 - Who Will Percy See?, Percy's Story (speaking role) & Toby's Favourite Place (cameo)
 * Calling All Engines! - Which Diesel Engine with Which Steam Engine?

Animation:
 * Season 8 - Guess the Engine - Percy, Percy Pulls Out of the Station, Surprise Destinations, Thomas and Percy Plays Hide and Seek & Sharing Trucks
 * Season 9 - Getting to the Washdown (speaking role), Which Engine for Which Job?
 * Season 10 - How are Thomas and Percy Different?, What's Found Where?, Which Engine Should go to Which Building?, Clever Percy, Dot to Dot - Percy, Percy's Treasure & Happy or Sad
 * Calling All Engines! - Thomas Looks for Mavis
 * The Great Discovery - Tough Trucks
 * Unknown - Who's Going Where?

Videos
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 * Welcome to the Island of Sodor Logan! (stock footage cameo)
 * A New Friend on Sodor (cameo)
 * A Friendly Farewell (does not speak)
 * Meet the Contenders: Percy of Sodor
 * Meet the Contenders: Thomas of Sodor
 * Shark Escape
 * Space Mission
 * Thomas & Friends in 4-D: Bubbling Boilers

Books
Percy also appeared in the magazine stories, A Good Hiding Place, A Job for James, A Long Way Up!, A Puzzle for Percy, Big Catch, Bill and BoCo, Boat Afloat, Bulgy's Dream, Clean Getaway!, Clever Climbers!, Daisy and the Fish, Dressing Up, Engine Plates, Fast Food!, Fish and Fog!, Fishy Diesel!, Flying James, Funnels and Tunnels, Good Games, Bad Sport!, Happy Holiday!, Harvest Time, Henry and Diesel, How Does Percy Work?, I Spy with my Little Eye, Jack Frost, Jim's Jungle Ride!, Just Right, Keeping Dry, Lazy Wheels, Letting off Steam!, Looking Splendid, Lost Luggage!, Making a Mess!, On Inspection, Percy gets Wet!, Percy's House, Percy's Plight, Percy's Spooky Tooth, Percy's Stories, Percy and Terence, Percy and the Trucks, Pigeon Passengers!, Pink Cows, Proud Percy!, Puzzles, Really Useful Edward, Rhyming Engines, Rushing Around, Seeing Steam, Snake Mistake, Sodor's Strongest Engine, Spooky Station, Spotty Spencer, Steaming Along!, Taking Toby, The Balloon Race, The Big Ship, The Camel Train, The Christmas Sacks, The Cloud Factory!, The Dodgems, The Flying Broomstick, The Lost Parcel, The Runaway Percy, The Trainspotters, The UFO, There and Back, and Think Pink.
 * 1987 - Thomas' Christmas Party
 * 1988 - Trouble in the Shed, Percy Runs Away, Whistles and Sneezes, James and the Tar Wagons, Percy and the Signal, Old Iron (does not speak), Thomas, Percy and the Coal, Percy and Harold, The Runaway (mentioned), Ghost Train, Woolly Bear, Percy's Night Out, Henry's New Driver (mentioned), Percy Gets Jammed, The Train Spotters (mentioned), Duck Takes Charge, Cows, and Percy's Predicament
 * 1989 - Rumours and Speculation, Gordon's Express, The Escape, The Party (does not speak), Thomas and the Whistle, One Good Turn (cameo), A New Driver, The Missing Holly! (mentioned) and A Surprise for Thomas
 * 1990 - Trouble in the Tunnel, One Bump Too Many, The Backlog (does not speak), Percy and the Dragon, and Go Easy
 * 1991 - Gordon Forgets (mentioned) and Daisy in Distress (cameo)
 * 1992 - A Lost Load! (mentioned)
 * 1993 - Percy and the Parrot!, The Visitor, Trevor to the Rescue! (cameo), Roof Repairs!, Thomas and the Toboggan! (cameo), The Viaduct!, Truck Trouble!, First with the Food! (mentioned), and Too Fast!
 * 1994 - A Special Treat! (cameo), Thomas and Trevor (not seen), The Hot Soup Special!, Runaway Trucks, Well Caught! (mentioned), Puffing Pots! and Treasure Hunting Tractor!
 * 1995 - Keeping Clean! (cameo), Night Lights (does not speak), The Engine Parade!, Percy has Problems and Tricking Trucks!
 * 1996 - Percy's Squeak!, Henry's Hoax, The Little Line, The New Track, Gordon's Spots! (does not speak), Important Passengers!, Edward and the River Rose! (mentioned), Percy Saves the Day, Thomas and the Tunnel!, Thomas Takes a Ride!, Truck Trouble!, Grumpy George, The Brown Bear, Oliver's Mistake, Too Tired! (does not speak) and Pulling and Ploughing!
 * 1997 - Percy's Goods Train, Percy's Puzzling Trip!, Clowning Around!, Henry's Busy Day (does not speak), Henry, Percy, Gordon, Percy's Surprise, The Flower Train, Percy's Promise, Red Sky at Night! and Thomas, Percy and the Post Train
 * 1998 - The Beached Whale!, Smokey Joe! (mentioned), The Snow Engine!, Thomas, Percy and the Dragon!, Gordon's Express, Look Alike, Runaway Percy!, Billy's Bones! (cameo), Donald's Duck! (cameo), The Exhibition! (cameo), The Easter Cake! (cameo), James' Hotel!, Christmas Crisis (does not speak), and Copycat!
 * 2000 - Shivers in the Sheds, Rude James, Back to Front! and Lucky to be Lost! (does not speak)
 * 2001 - Too Fast, A Song for Caroline (cameo), Down at the Docks, Choc-o-BoCo!, Percy's Fire!, Playful Pony, Pumpkin Pie!, A Special Story About Snow!, Dusty Diesel (cameo), Rolling Around!, Eye-in-the-Sky and Pulling the Post (cameo)
 * 2002 - Whistling!, The Winning Shot, Travelling Tables! (cameo), Dusty Diesel (cameo), Tunnel Trap!, The Flower Festival (does not speak), Ben at the Station (mentioned), Daisy and the Troublesome Trucks (does not speak), Percy, The Fat Controller's Diesels! (cameo), The Blue Engine Club (cameo), Diesels and Steam Engines (cameo), Clean Up Chaos and Diesel's Drums (cameo)
 * 2003 - To the Harbour, Build or Bust!, The Most Beautiful Station, Feeling Fine (cameo), Broken Bridges (cameo), Bridges, A Foggy Friend, Harold's Bad Day, Harvey to the Rescue!, Shady Business!, Really Fast Food!, Percy's Party!, Percy the Post!, Dirty Work, Where's Wag? (does not speak), Revving Racers (does not speak), Thrills and Spills!, The Cat Controller! (does not speak) and Thomas Goes Squeak!
 * 2004 - All Puffed Out, Crash Splash!, Rocket Power, Pony Pick-Up!, Percy the Pirate, Percy gets Wet!, Night Lights, James and the Red Balloon, Scary Jack Frost, James' New Coat, More Mischief!, Going for a Swim!, Crash Splash!, Percy to the Rescue, Snake's Alive!, Toby's Troubles!, Broken Biscuits, Dirty Percy!, Dockers' Dinner, Harold's Bad Day, Edward to the Rescue!, Peep! Peep! Moo! Moo!, Steam Power, Rock Shock! (cameo), The Haunted Mine, It's Only Snow! (cameo), Metal Men, Percy and the Dragon, Sparks Fly, Percy Keeps Warm (does not speak), Thomas the Tortoise, Glider Rider and The Flying Horse
 * 2005 - Perfect Percy, Super Slider, Percy and the Magic Carpet, Gordon's Snow Show, Thomas' Hallowe'en, Percy and the Painting, Spick and Span, Model Engines, Cheers for Thomas (does not speak), Percy and the Big Mistake, Trying Time, Chickens to School, Glider Rider, Naughty or Nice?, Too Wet, Daisy and the Bull (cameo), Sunburnt Spencer and Something Fishy
 * 2006 - Emily Knows Best, Percy's New Whistle, Station Sounds, Thomas and the Statue, The Snow Controller (cameo), Seaside Surprise (mentioned), Disgusted Diesels (cameo) and The Lazy Diesel
 * 2007 - Everyone's Friend (does not speak), The Right Shape, Sleepy Sam, Emily's Present (cameo), Canal Cruise and Thomas' Frosty Friend
 * 2008 - Percy's Post!, Edward's Mail, Snow Trouble!, Track Race, Wonky Whistle!, Thomas and the Lighthouse!, Percy and the Left Luggage, The Ice Train!, Claypit Clowns, Hide n' Peep!, Toby's Triumph (cameo) and Come Back, Please!
 * 2009 - Night Light Train (cameo)
 * 2010 - Percy's Parcel, Hiro Helps Out (does not speak), The Best Present of All, Early Bird, Pulling the Post (cameo), Misty Island Rescue (does not speak), Percy Ploughs In!, Snow Tracks, Creepy Causeway, Percy's Poles, Disgusted Diesels, Thomas and the Rainbow!, Percy and the Magic Carpet and Thomas and the Kites (does not speak)
 * 2011 - Being Percy, Saved Again, Rumble Rescue (cameo), Steam on Stamps (cameo), Misty Island Rescue (cameo), Ready, Jet Set, Go! (cameo), Musical Trucks (cameo), Percy's Rainbow, Henry's Health and Safety (does not speak), Victor Says Yes (does not speak), Thomas' Crazy Day (does not speak), Thomas and Scruff (does not speak), The Flying Teapot, Out of Control, Rain or Shine, Little and Light, Hiro Helps Out (does not speak), The Runaway Kite (does not speak), Horrible Hiccups, Heave Ho Thomas! (does not speak), Winter Wish, Thomas' Tall Friend (does not speak), Caroline's Christmas (cameo), Snow Tracks (cameo), A Home for Salty (cameo), Mirror, Mirror, and Pingy Pongy Pick-up (cameo)
 * 2012 - Percy the Post Train, Percy's New Friends, Paint for Percy, Thomas and the Pigs, Early Bird, Bubbling Boiler, The Railway Show, Making Hiro Happy (does not speak), The Fat Controller's Bedtime Story (Issue 643) (does not speak), Edward's Big Rescue, Thomas' Tall Friend (mentioned), Team Spirit Time!, Ol' Wheezy Wobbles (mentioned), The Fat Controller's Bedtime Story (Issue 646), Up, Up and Away!, A Whoosh of Water!, Percy the Snowman, Thomas and the Sound of Sodor (does not speak), and Prize Guys (cameo)
 * 2013 - Horrible Hiccups, Strange Sounds, Surprise, Surprise!, Flash! Crash! Wallop! (does not speak), Whiff's Wish (does not speak), Terrible Twins (speaks in speech bubbles only), The Fat Controller's Bedtime Story (Issue 661), Early Bird!, Being Percy (does not speak), Play Time (mentioned in speech bubble only), Caught on Camera, Steamie Stafford, Coal and Treacle, Thomas the Spotter, Brilliant Ben, Ready, Jet Set, Go! (cameo), Gordon Runs Dry (cameo), Special Surprise, The Railway Rink, Muddy Matters (mentioned) and New Year Party (does not speak)
 * 2014 - Engine Trouble, Valentine's Surprise, Friendship Fall-out, The Royal Carriage, Wobbly Ol' Wheezy (mentioned), Mystery Fog!, Henry's Forest, William's Wish, Swanky Cranky!, Leaves on the Line!, Percy's Perfect Gift, Frozen Turntable (does not speak), Thomas and the Kites (does not speak) and Not Now, Charlie!
 * 2015 - Duck in the Water (speaks in speech bubble only), Spencer's Star (mentioned), Missing Gator, Don't Be Late, Percy!, The Perfect Present and Not Now, Charlie!
 * 2016 - Who's Geoffrey? (does not speak), Tickled Pink! (mentioned), Victor Says Yes (mentioned), Percy's Lucky Day and James' Ghost Train!
 * 2017 - Thomas and the Kites (does not speak), Engine Trouble, Not Now, Charlie! and Flash! Crash! Wallop! (does not speak)

Annual Stories
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 * 1985 - Percy to the Rescue, Thomas and the Important Visitor (mentioned), The Strawberry Special and Unhappy Landing (not seen)
 * 1986 - Percy and the Christmas Tree and You Never Know
 * 1987 - Signal Failure, Lost in the Snow (mentioned) and Percy's Passengers
 * 1988 - Percy and the Brake Van and Responsibilities
 * 1989 - Post Early for Christmas
 * 1990 - Thomas and the Cricketers (cameo) and Hosepipes and Shunters
 * 1992 - Percy and the Vicar's Prizes and Thomas and the Swans
 * 1993 - Thomas and the Snow Block (not seen)
 * 1994 - The Merry-Go-Round That Wouldn't and Thomas and the Tickles (mentioned)
 * 1996 - All Pull Together and Pantomime Pranks
 * 1997 - Percy in Print, Rusty's Revenge (not seen) and We Wish You a Merry Christmas!
 * 1998 - Engines to the Rescue, Percy Plays a Joke and The Star of the Show
 * 1999 - Blooming Railways (cameo) and Leaves on the Line
 * 2000 - Thomas the Famous Engine, Double Trouble and The Flood
 * 2001 - Very Special Engines (cameo), Thomas the Famous Engine, Edward Saves the Day and Donald and Douglas
 * 2002 - A Special Day for Thomas (mentioned), "That's the Way to Do It!" (cameo), Terence to the Rescue, The Really Useful Traction Engine, Percy's Dream and Harold the Helicopter (cameo)
 * 2011 - Hiro Helps Out (does not speak)
 * 2013 - Hiro Helps Out (does not speak)
 * 2013 Holiday Annual - The Biggest Present of All
 * -|Thomas Creator Collective=

Trivia

 * One of Percy's models is currently on display in Japan at the Hara Model Railway Museum (previously on display at Nitrogen Studios). His large scale model used for the spin-off series, The Pack, is also on display in Japan at the Hara Model Railway Museum (previously on display at Thomas Town).
 * Percy is the only engine who is known to have been named by the Fat Controller.
 * In the Greek narration of the Classic Series, Percy is called "Jerry". From the thirteenth season onwards, Percy has been referred to with his original name.
 * According to Abi Grant on her website, Percy is her favourite character.
 * Britt Allcroft stated he was also her favourite (due to him being green and cheeky).
 * He is also Mark Moraghan's favourite character, alongside Cranky.
 * Percy has had three cameos in the American sit-com, Everybody Loves Raymond.
 * Percy's whistle sound is actually Edward's in a higher pitch.
 * Percy is the first character other than Thomas to be the protagonist in a special, with that special being Day of the Diesels, which he would later do again in Tale of the Brave.
 * In Thomas and the Rumours, Percy is stated to have a branch line although Thomas' branch line may be the one that was referred to.
 * Percy was featured on the 1986 single cover along with Rheneas of Oh L'amour, a song by English synthpop duo Erasure.
 * One of Percy's original face masks is owned by Twitter user ThomasTankMerch.
 * Percy went through several aesthetic changes in the television series:
 * Season 2 (only):
 * His right side piston was loose and would shake violently when moving.
 * His centre lamp iron was heavily glued in.
 * Season 3:
 * His whistle changed shape (now being more like Gordon or Henry's).
 * Later in the season, his whistle sound would be his own but in a whole step lower in pitch.
 * His two front sandboxes were flipped around.
 * Season 4:
 * His whistle sound changed back to its original pitch.
 * His smokebox was raised up.
 * In some episodes towards the end of the season, one of the two black sections extending from under his smokebox to the end of the footplate is missing.
 * Thomas and the Magic Railroad:
 * He gained a permanent lamp.
 * He gained a stand underneath his smokebox.
 * The lining on his pistons was moved slightly inwards.
 * His eyebrows change shape.
 * Season 6:
 * His cab was blacked out (except for cab shots filmed on a larger model).
 * Jack and the Sodor Construction Company (large scale model only):
 * The step ladders on his running board are painted red.
 * His whistle is taller than his cab.
 * His dome is painted green.
 * Season 7:
 * The counterweights on his wheels vanished.
 * The Great Discovery:
 * His large scale model's dome is painted gold.
 * Season 12:
 * His large scale model's stepladders were painted green.
 * Hero of the Rails:
 * His cab became open again
 * Season 19:
 * His side rods become silver.

Merchandise
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