Thomas and Percy

''This article focuses on the relationship between Thomas and Percy. ''

 Thomas and Percy  are best friends and close as brothers. They get along very well and love playing together. They're closest engines out of anyone else. They have a great relationship.

Overall
In the earlier seasons, Thomas and Percy sometimes tease and play tricks on each other. Also, they sometimes fight. Overall, they get along well and love being with each other, as they're best friends.

Season 2

 * In “Thomas, Percy and the Coal”, Percy compliments Thomas on his paintwork, but Thomas brags to him along with Toby that he has the best paintwork on Sodor. After Percy and Toby say that they like their paint, Thomas disagrees and states that only blue is the color for a Really Useful Engine. Later, Thomas rests at the Coal Hopper when Percy arrives to fill up some trucks, Thomas decides to be cheeky, warning Percy of the trucks' antics and some unsafe buffers on the siding behind him. The trucks then push Percy into the siding and the last truck passes the coal chute causing a large pile of coal to bury Thomas and cover his paintwork in coal dust from smokebox to bunker. He cries for help and calls to Percy to get him out. Percy is worried but cannot help laughing as Thomas' blue paint is ruined. That night at the sheds, Thomas and Percy are crossed at each other and begin arguing for the rest of the night. The next day, Thomas is feeling more cheerful as Percy brings in some trucks from the junction. Percy is thirsty, so he goes into the siding where the water tower is. The siding there however has faulty buffers and as Percy heads to the siding, he finds himself unable to stop, crashes through the buffers and lands in a pile of coal. Thomas has seen everything and laughs as he leaves when his signal turns green. That night, after Percy is cleaned, he and Thomas apologise to each other for what happened and promise to be more careful with coal next time.
 * In “Old Iron”, James complains to both of them that Edward is always making the other engines wait and he clanks about like a lot of "Old Iron". Thomas and Percy - who both have a great deal of respect for Edward - are outraged at this remark.
 * In “Percy and the Signal”, Percy boasts to Gordon and James that he is taking trucks to Thomas’ junction.
 * In “Duck Takes Charge”, The Fat Controller asks Percy if he would like to help Thomas along with Toby build the new harbour which cheers Percy up straight away.

Season 13

 * In "The Lion of Sodor", Percy tells Thomas that he's very excited to see the Lion of Sodor. When the lion is a mess, Percy (along with Henry) don't laugh at Thomas' mistake. Percy then tells him that he didn't know the lion was a statue either.
 * In "Tickled Pink", Thomas and Percy (along with Gordon) laugh at James in his pink livery.
 * In "Slippy Sodor", Percy is one of the engines who never laughs at Thomas' new funnel.
 * ￼In "The Early Bird", a the beginning, Thomas notices that Percy is not at Tidmouth Sheds. He asks James where he is but James does not know and that he has too much to do to see Percy. The Fat Controller then arrives and tells Thomas that Percy popped a piston and must be at the Steamworks to be fixed. He then tells Thomas to deliver the mail for him. This gets Thomas excited. Later, he sees Gordon and tells him that he's delivering the mail for Percy. Gordon tells Thomas that he should go to Percy for advice, but Thomas is way too excited to do that. The mail run doesn't go well because Thomas' whistle wakes Cranky, Mavis, Victor, and Kevin up. He realizes his mistake and heads to the Steamworks for advice from Percy. Percy is happy to see him and he explains to Thomas how to be quiet. At the end, Percy tells him that he did everything right and then Thomas falls asleep. Percy tells him to sleep well and watches him.
 * In "Play Time", Percy tells Thomas about Charlie and when he tells him that he could be more fun than Thomas, he feels offended.
 * In "Thomas and the Pigs", Percy tries to tell Thomas his idea of what the piglets might like, but Thomas doesn't have time. Percy sadly says goodbye to Thomas.
 * In "Percy's Parcel", They are the only engines at Tidmouth Sheds at the beginning. When Percy is sad that he doesn't have a special, Thomas reassures him that he may have a special later. When Percy collects his parcel, Thomas excitedly tells him that he has the most important special of all. Percy tells him that he is going to show Mavis his special. Thomas tells him that he should go to Knapford, but Percy refuses and tells him that he has plenty of time. Later, Percy realizes his mistake and goes to Knapford just like Thomas said.
 * In "Thomas and the Runaway Kite", Percy wants to help Thomas chase the kite, but Thomas says that he wants to do it himself. Later, Percy tells him that he looks sad. After Thomas asks Percy, Edward, Emily, and Charlie to help Thomas find the kite, Percy says that they will.
 * In "Steamy Sodor", at the beginning, Thomas tells Percy that the Sodor Steamworks is one of his favourite places and that he gets to be in charge. Percy tells him that that's a very important job and wishes him good luck.
 * In "The Biggest Present of All", they both greet Hiro when he arrives at Brendam Docks. After The Fat Controller gives them their jobs, Thomas and Percy discuss about the welcome party. They both then leave. At the end at Knapford, Thomas and Percy are on the same track facing each other.
 * In "Snow Tracks," they don't really interact, but at the end, they are next to each other at Tidmouth Sheds.
 * In "Henry's Good Deeds", Percy asks Thomas what a nesting pole is and Thomas answers him.

Season 14

 * In "Thomas' Tall Friend", at the beginning, Thomas only says good morning to Percy. Percy is also surprised at Thomas' special. He asks if the giraffe will sit down and Thomas assures him that it will sit down. Later, Percy sees Thomas in front of the tunnel and decides to have the giraffe eat his leaves. This makes the giraffe lay down and the two best friends are delighted. They both chuff together to the animal park.
 * In "Victor Says Yes", they don't interact, but after Percy exclaims his problem, Thomas exclaims his right after Percy.
 * ￼In "Thomas in Charge", Thomas tells Percy that the Railroad Inspector is coming to Brendam Docks and asks Percy if he will come with him to shunt trucks. Percy wasn't sure at first since he had to deliver the mail, but Thomas explains that shunting cars will please the inspector most of all and make The Fat Controller proud, Percy then decides to go with Thomas. On their way, they both say hi to Mavis. Thomas decides to ask Mavis to shunt cars with them, Thomas tells Percy to chuff on.
 * In "Being Percy", they don't interact, but Percy asks him and James to move out of Percy's way. He then blows his whistle which causes Thomas and Percy to move out of Percy's way.
 * In "Merry Winter Wish", they are both next to each other at the beginning during Salty's story. Thomas decides to bring the Star of Knapford to Percy so that he can make a wish. Once Percy made his wish, he thanks him. After the Star of Knapford crashes, and Percy, James, and Henry chuff up to Thomas, Percy asks if he's alright. At the end, they are next to each other at Knapford.
 * In "Thomas and the Snowman Party", Percy (along with James) tell Thomas what will be happening at the Snowman Party. Later, Percy and James explain that there were hats missing.
 * In "Thomas' Crazy Day", Percy once again pops a piston and is at the Steamworks. Percy is sad because he wants to play with Thomas. Thomas explains that once he's mended, they will play together. Later that day, Thomas leaves the Logging Locos to play with Percy. They play hide and seek. Thomas is about to find Percy, but remembers he must help Bash, Dash, and Ferdinand. He goes back to Percy again but can't find him. He calls out his name and Percy comes out of his hiding place. Percy is sad because Thomas didn't play and it wasn't fun at all. Thomas feels terrible that he let his best friend down. Thomas decides to have fun with Percy at Brendam Docks. Together, they teach the logging Locos how to be useful.
 * In "Thomas and Scruff", Percy greets Thomas and asks what he is doing. Thomas explains that Scruff is hiding because he doesn't want to be clean. Percy tries to get Scruff out of his hiding place by coming with him to deliver mail. The two best friends wait but Scruff still doesn't come out. Thomas asks Percy what will he do now. Percy doesn't know but has to go since he's late with the mail.
 * In "Merry Misty Island" at the beginning, Thomas and Percy are seen smiling at each other.
 * In "Henry's Magic Box", they are with each other while Henry meets them. Later, they are both seen with Edward at Tidmouth Sheds when Henry tells them about the party. At the very end, Percy is behind Thomas.

Season 15

 * In "Percy's New Friends", Percy wants to play with Thomas, but Thomas has to deliver tools to the quarry. After Thomas leaves, Percy is sad. Later in the episode, after Gordon rushes through Percy, Thomas chuffs up and asks Percy what happened. Percy states that Gordon scared him. Thomas was sure that Gordon didn't mean to. Percy explains to Thomas that big things can scare little things. He suddenly realized that the animals are scared of Percy since he is loud. He says goodbye to Thomas.
 * In "Happy Hiro" at the very beginning, Thomas says hello to Percy before he heads off.
 * In "Up, Up, and Away", the entire episode is based on them. At the beginning, the narrator explains that they are best friends and they greet each other with their whistles. Thomas then greets Percy along with the others at Tidmouth Sheds. Thomas tells everyone that Mr. Bubbles is doing a big balloon show. Percy comments that big balloons make his boiler bubble. Thomas laughs because he loves seeing his best friend happy. The two of them head to Brendam Docks. They both are surprised to see the giant balloon on the flatbed. The Fat Controller tells them that they need to take the big balloon to the show-ground. On the way, Thomas decides that they should puff along the woodland track, but Percy thinks that the balloon might run up against a branch and pop. So he suggests that they take the balloon along the costal line. Thomas worries that the balloon might blow away along the windy coast, but does not want to upset his best friend. Along the way, the balloon is blown high into the sky. The engines wait for the balloon to return. Gordon chuffs up and explains that the balloon won't return to them. The two friends puff back go the docks to collect another balloon. They then arrive at a tunnel. Percy is certain that the balloon will fit through. They then try to force it in but it gets wedged and Gordon arrives and is waiting. The two then get another balloon. They are running as fast as they could but Gordon chuffs towards them. ￼The balloon is freed, knocking The Fat Controller, Lady Hatt, and Dowager Hart's hats off. Thomas feels terrible and explains that he did what Percy wanted to do because he didn't want to upset him. Percy smiles and tells him that he can't upset him, as they are best friends. They then return the hats and pop the balloon from the tunnel. They then get another balloon. They then take the woodland track and arrive at the show. They along with Gordon are amazed.
 * In "Surprise, Surprise", Thomas meets Percy on the Fenland Track. Percy is suffering from a cracked coupling rod, so Thomas kindly shunts him to the Steamworks. Percy, along with Edward and Stanley will miss the children's party. Thomas decides to throw a party at the Steamworks. At the end, Percy tells Thomas that this was the best party ever and Thomas agrees.
 * In "Spencer the Grand", Spencer asks Thomas where Percy is. Thomas explains that he is still out with the mail and that they're all worried about him.
 * In "Big Belle", They are seen chuffing together at the beginning and Belle greets them.
 * In "Kevin the Steamie", Thomas and Percy make up a game called "Biff, Bash, Bosh", where they shunt a truck back and forth. Kevin wants to play with them but he doesn't have buffers. Thomas and Percy offer to return after work to play "Biff, Bash, Bosh", with him. They return near the end and play Hide and Prep instead so that Kevin can play.
 * In "Percy the Snowman", On Thomas' way to take the Fat Controller to switch on the Christmas tree lights at the Town Square, he meets Percy and tells him that he has a special job to do. Percy is upset because he has not been given a special. Thomas agrees to share his special with Percy. Thomas tells Percy to wait until he finishes his job. Percy warns Thomas that snow can be tricky. Everytime he passes Percy, snow is sprayed on him. Percy warns Thomas to slow down but does not hear him. Thomas later races to collect Percy, but cannot see him anywhere. After Gordon chuffs by covering a bush with snow, Thomas thinks that Percy is covered in snow. Once Percy is seen, Thomas apologizes and promises that he'll share his special. Thomas tells the Fat Controller to take the party to Percy. He declares that Percy the Snowman is their special.
 * In "Tree Trouble", ￼Percy tells Thomas that Dowager Hatt is talking to the Diesels.

Season 16

 * In "Ol' Wheezy Wobbles, Thomas states that he wishes Percy was here to help him. He realizes if he wants Percy's help, then Den and Dart need each other's help.
 * In "Flash Bang, Wallop!" Thomas decides to join Percy in the photo. Percy is surprised, that he ends up in a big pile of coal. Later on, Thomas apologizes to Percy and that he'll help him. Then, Rocky and Thomas rescue Percy. At the end, they are next to each other at Knapford Station and they are both, along with Rocky on the front cover of the album. Thomas states that that photo is the best photograph of all.
 * In "Thomas and the Sounds of Sodor" Thomas helps Percy.
 * In "Muddy Matters", they both meet James on their way to the fair.

Season 17
TBA

Specials

 * In “Thomas and the Magic Railroad”, at Knapford, Thomas and Percy talk about Mr. Conductor and conclude that he travels to Sodor on a magic railroad by a set of magic buffers. Later, when Thomas tells Percy about the missing truck, they realise that the buffers where the truck disappeared are the buffers leading to the Magic Railroad. Thomas tells Percy to guard the buffers while he goes to find Mr. Conductor, citing that Percy is a brave engine. Later that night, after Splatter suggests to Percy that he should tell Diesel 10 about the buffers the next day, Percy races to warn Thomas. Then, Thomas and Percy decide they must get Lily back to Muffle Mountain before Diesel 10 destroys the magic railroad.
 * In “Calling All Engines!”, Thomas and Percy go to the site of the new airport, only to discover that 'Arry and Bert, who start bullying the two, are on the same job. Later whilst Thomas and Percy are shunting trucks, Diesel confronts Thomas about the trouble he had caused for 'Arry and Bert and boasts that he too has an important job. Later, Thomas and Percy go to the Smelters to collect some steel girders. Upon arrival, they find Diesel 10 loading trucks of scrap metal. The two tank engines are very scared and decide to come back once Diesel 10 has gone. On their way home, Thomas and Percy are concerned to see the Sodor Suspension Bridge is not painted and the new airport is only half-built. Tidmouth Sheds was also demolished. Later, Percy, along with Emily, Diesel, 'Arry, and Bert are surprised to see Thomas and Diesel 10 working together.
 * In “The Great Discovery”, Percy is seen sad when Thomas has gone missing. Later, when everyone was about to give up, Percy reminds them that Thomas found Great Waterton on his own, that it is his town and that they cannot have the opening without him and everyone agrees.
 * In “Hero of the Rails”, Percy along with everyone else wish Thomas good luck before he and Spencer race. Later, when Thomas is taking machines to Farmer McColl, Percy shows up and Thomas tells him everything. He asks Percy to deliver the machines for him while he goes to help Hiro. Percy does so, shunting his mail coaches into a siding in the meantime. Thomas soon finds Percy down the line, having broken down while delivering the goods to Farmer McColl. Spencer teases them, but Thomas takes no notice and brings Percy to the Steamworks. At the Steamworks, Thomas and Percy tell Victor all about Hiro. That night at Tidmouth Sheds, the Fat Controller is very cross. Percy's mail coaches have mysteriously vanished and nobody can find them. Thomas promises that he will find them, but he knows this means he will not be able to help Hiro. Thomas later takes Percy to see Hiro, but he is a little nervous at first. The two later head back home. As they do so, Spencer watches from the siding, determined to find out what they are up to. The next day, Thomas and Percy go out to search for the missing mail coaches, under the Fat Controller's orders. Meanwhile, Spencer tries to harass Emily for information, but she tells him to go find out for himself. Spencer is so cross that he does not notice Percy and Thomas passing on the bridge behind him, with Edward coming down the other way. The next day, Thomas and Percy head to the quarry to search for the mail coaches. Spencer has secretly followed them there. But before he can do anything, Mavis appears and offers to show him around, but she is really shooing him away from Thomas and Percy while James sneaks away with more parts for Hiro. Thomas and Percy are later getting coal and Emily is puffing off to give Hiro more parts. Later, Thomas finds Hiro and tells him that Percy is on his way with the final part. That night, Percy apologises to Thomas for hiding his mail coaches so close to Hiro since he was unaware of how far he was. However, Thomas tells the other engines that he will work so hard on the summer house that the Fat Controller will be pleased and hopefully understand Hiro's case and have him restored. Thomas and Percy bring Hiro to the Sodor Steamworks the next day. The Fat Controller and Victor promise to have him running like new again. At the end, a big farewell party is held for Hiro. Before he leaves, he talks to Thomas and Percy one more time. Thomas hopes to visit Hiro's railway someday and Percy wonders if Hiro will ever return. Thomas promises that Hiro will always have a home on the Island of Sodor.
 * In “Misty Island Rescue”, Thomas tells Percy about smoke signals. Later, Percy whistles goodbye to Thomas along with everyone else before he leaves to Misty Island, Later, when Thomas is confirmed to be missing, Percy asks the Fat Controller what has happened to Thomas. He doesn’t know. Later, at Brendam Docks, Percy notices puffs of smoke coming all the way from Misty Island. He’s happy because it’s Thomas. He excitedly shows Salty and Cranky. Later, when Thomas and the Logging Locos are stuck in the Misty Island tunnel, Percy along with Whiff travel in the tunnel to search for them. Then, Percy calls out to Thomas. Thomas hears him and he’s very happy. He calls him his “best best friend” Percy is happy as well.
 * In “Day of the Diesels”, this special is mostly about their friendship. At the beginning, Thomas finds Percy helping to fight a fire at a farmhouse. After Belle, the new fire locomotive runs out of water, Thomas and Percy shunt her to the Steamworks. When Thomas starts to spend all his time with Belle, Percy feels left out. Diesel even starts teasing him. Later, when the diesels mention that they tried to tell the fat controller that they needed repairing, and that he only listens to steam engines, Percy says that he will ask Thomas to tell the Fat Controller because he always listens to Thomas. Later at the Steamworks when everyone is admiring Flynn, another new fire engine, Percy tries to tell Thomas about the Dieselworks, but Thomas interrupts saying that the Fat Controller had asked him to show Flynn around the Island and he rolls over to the new fire engine. Percy very sadly rolls away to Tidmouth Sheds. Later, after Percy discovers that the diesels do not have a working crane, he sets off to the Steamworks to find Thomas, but he isn’t there. Later, Thomas arrives and tells Percy that Flynn's hose is missing. Percy again tries to tell Thomas about the Dieselworks, but Thomas puffs away to talk to Victor. That night when Percy chuffs to Tidmouth Sheds, he is shocked to see Flynn in his berth. He is very upset. At the Dieselworks, Diesel 10 asks Percy if he had told Thomas to tell the Fat Controller about the poor condition of the Dieselworks. Percy tells him that he had not, but that he will. Diesel 10 says that Percy should bring Thomas to the Dieselworks so that they will have his full attention. Percy reluctantly agrees and spends the night at the Dieselworks, Diesel 10 asks Percy if he had told Thomas to tell the Fat Controller about the poor condition of the Dieselworks. Percy tells him that he had not, but that he will. Diesel 10 says that Percy should bring Thomas to the Dieselworks so that they will have his full attention. Percy reluctantly agrees and spends the night at the Dieselworks. The next day, Percy arrives at Knapford only to learn that Thomas is looking for him. Thomas then arrives and asks where Percy was. Percy tells him, but before anyone can say anything, Gordon pulls up announcing Kevin's disappearance. Percy tells everyone that he is at the Dieselworks and Thomas asks if Victor knows. Percy admits that he does not and Thomas tells him that he must tell Victor right away. At the Steamworks, Percy tells everyone about the Dieselworks, but Thomas still does not listen. So Percy tells Thomas he must collect Kevin from the Dieselworks. Percy returns to tell Diesel 10 that Thomas will soon be there and that Victor has left the Steamworks. Later after the diesels tricked him, Percy returns to the Dieselworks to find Thomas, but first sees that a fire had started in the main shed. Percy races to the Rescue Centre to get Flynn and Belle, but Belle reminds them that Flynn's hose is still missing. Percy thinks about how the diesels had tricked him and thinks that the hose must still be at the Dieselworks. So the three set off to rescue Thomas, Kevin and the Dieselworks. Once there, Percy orders Den and Dart to let Thomas go. The two diesels initially refuse to move until Percy tells them that the Dieselworks is on fire, enabling Percy to free Thomas and Kevin. Percy and Thomas roll to the front shed and watch Flynn and Belle put out the fire. Now that the Dieselworks are safe (albeit in worse shape than before), Thomas and Percy rally their friends to retake the Steamworks. Later, after the Fat Controller is furious at Diesel 10 for damaging the Steamworks, them along with Kevin tell the Fat Controller that the diesels are sad because their Dieselworks is old and dirty. At the end after the Dieselworks is restored, Percy rolls up beside Thomas and tells him that he feels proud and special when he is with him and Thomas says the same thing. The two best friends laugh together.
 * In “Blue Mountain Mystery”, when Thomas asks his friends at Tidmouth Sheds what the worst thing an engine could do is, Percy tells him that remembers the time when he tried to sneak up on the coaches, but ran into a baggage trolley and covered himself and the Fat Controller in jam.