"Devious" Diesel is a devious diesel shunter, originating from the Other Railway.
Bio in the Railway Series
When Diesel came on trial to the North Western Railway, Duck was asked to show him around. Duck was unimpressed by Diesel's claims of being "revolutionary" and left him to his own devices. As a result, Diesel was made into a laughing stock by the trucks for trying to pull some rusty old trucks and failing spectacularly, and Diesel blamed Duck for not helping him. Diesel swore a vendetta, and spread rumours that Duck had given the big engines rude nicknames. Duck was sent to Wellsworth pending an inquiry into the matter, but Diesel got too big for his buffers and tried telling lies about Henry. He was found out and sent home in disgrace.
Several years later, Diesel was brought back to help on Thomas' Branch Line whilst Percy was being repaired. Diesel tried to win Thomas and Toby over, without success, and after he destroyed several trucks he was to be sent away. However, on his day of departure, Clarabel slipped on oily rails left by Daisy and came off at some points near Dryaw. Diesel, realising that Thomas was blocking his only way home, went to the rescue. Clarabel put in a good word for Diesel, and Diesel, although he returned to the Other Railway, is always welcome on Sodor.
Bio in the television series
Diesel first arrived on Sodor in the same way he did in the Railway Series and was sent away, but returned when Duck and Percy needed help at Arlesburgh. Diesel proved to be as bad as ever and was sent away for good after shunting some trucks of china clay into the sea, but he mysteriously snuck back to give Mavis advice, taunt Gordon about the triumph of Diesel power on the mainland, and shunt trucks in the Shunting Yards. It is possible that these events happened during Diesel's stay or that Diesel returned at some point with goods from the Mainland.
When Henry was derailed by some trucks, Diesel was brought back as a last resort to do his goods work, but his attempt to prove his worth resulted in him falling in a barge, and he was sent back to the mainland yet again.
Later on, Diesel returned yet again, this time to assist Fergus at the Cement Works. Diesel became jealous of Fergus' reputation as the "pride of the Cement Works" and concocted a scheme to make Fergus run away. Diesel was partially successful - he managed to make Fergus abandon his post for a time - but was ultimately foiled. Amazingly, Diesel was not sent back this time round and remained on the North Western Railway.
Despite remaining tricky and devious, Diesel learned how useful steam engines can be when Thomas brought fresh diesel fuel for him and the other diesel engines and James pushed him back to the Repair Yard when he broke down. However, he tried to convince Gordon that he was old and clapped out, Ben that there was a monster inside a tunnel, and Thomas about the "Curse of the Cliffs" and scared him at Halloween.
But Diesel proved to have a good side inside him when he told Emily about his record he made for shunting lots of trucks, and proved to Thomas that he didn't ruin the photograph for the billboard on purpose.
Although Diesel made fun of James when he was painted pink, he tried his best to prove himself to be as useful as the steam engines when he took all of the Jobi wood to the Sodor Search and Rescue Centre - only to put himself in danger requiring Thomas to rescue him. However, Diesel tried again to prove how special he is when he took Thomas and Rosie's loads to market and stole James' pigs so that the children could see them. But it was only when Diesel brought the load of slate for the school that he proved himself Really Useful.
Diesel was also one of the Diesels that took over the Sodor Steamworks. He later teased Flynn for just standing around and doing nothing.
Diesel was annoyed when Percy thought he was the Monster of Brendam and later teased Thomas for being a stinky engine and teased Gordon when he was fitted with a yellow and black Diesel bufferbeam. When he and Percy collected a calliope, he thought Percy would not be able to make it play, but was surprised when he did.
In King of the Railway, Diesel teased Stephen about being old and boasted about being a "modern engine".
In the seventeenth season, Diesel was one of the diesels that brought the Christmas decorations to Tidmouth Sheds. Later, he was biffing trucks around even when Edward told him to stop. Diesel spilled the milk in the trucks, and when the Fat Controller opened the truck doors, the milk splashed all over his trousers. When Hiro told Diesel, he told Hiro to toughen up with the trucks. But when Hiro would not listen, he coupled himself up on the back of his train and helped the trucks play tricks on Hiro. To make the trucks stop, Hiro brakes suddenly before the platform, causing three barrels of cream to splash all over Hiro, Edward, and the Fat Controller. Diesel tried to get away, but was blocked off by Thomas. As punishment, Diesel has to learn the proper way of handling trucks by Hiro.
In the eighteenth season, Diesel, along with Sidney, Den, and Dart, hid from Paxton at the Dieselworks, which resulted on Paxton going on a wild goose chase to find all of the diesels and ended with Diesel running out of fuel, so Paxton helped him to the next station to get some more. Later, he argued with Thomas over who should be the back engine for a train of trucks heading from Ffarquhar Quarry to Brendam Docks, and when he tried to delay Mavis returning to the quarry, Thomas took the train by himself, which resulted in him having an accident. Diesel even tried to blame Mavis for it, but the Fat Controller was wise to his tricks and he let Thomas work with her instead.
Diesel is, in essence, the average pantomime villain. He is oily, malicious, devious, scheming, and full of ideas to get revenge. It appears Diesel has a good side in him, but one would still have to look deep to find it. He does want to be a really useful engine, however, since his arrival, he has given Diesels a bad reputation. He is also very proud to be the first Diesel on Sodor.
Diesel is a BR Class 08 0-6-0. Over seventy members of this class survive today in preservation. They were in fact the most successful shunting engines in the world, with 996 of them built. The Diesel Shunter, Splatter, Dodge, 'Arry, Bert, Paxton and Sidney are also members of the class.
Diesel is painted in the black livery used by British Railways for shunting engines in the 1950s. His siderods were silver until the sixth season and have been black in every season after.
- Kerry Shale (UK; thirteenth season onwards)
- Michael Brandon (US; thirteenth season - Blue Mountain Mystery)
- Martin Sherman (US; King of the Railway - eighteenth season)
- Jorge Ornelas (Mexico; fourteenth season onwards)
- Daisuke Gōri (Japan; second, third, seventh, and eighth seasons)
- Hisao Egawa (Japan; sixth season only)
- Ken Sanders (Japan; Calling All Engines! onwards)
- Paweł Galia (Poland; thirteenth season only)
- Janusz Wituch (Poland; Misty Island Rescue onwards)
- Christoffer Staib (Norway; thirteenth season - sixteenth season, excluding Day of the Diesels, Blue Mountain Mystery and King of the Railway)
- Helge Winther Larsen (Norway; Day of the Diesels onwards)
- Eberhard Haar (Germany; twelfth-fifteenth season)
- Martin May (Germany; Day of the Diesels onwards)
- Reinder van der Naalt (The Netherlands)
- Anibal Munhoz (Brazil)
- Jorge Teixeira (Spain)
- Diesel was the first diesel to be introduced in both the Railway Series and Television Series.
- According to the magazines and the DVD Bingo game, he and Bulgy are good friends.
- In the fourteenth season and parts of the fifteenth, Diesel has a generic diesel horn sound. He regained his original second season horn in Day of the Diesels.
- Diesel's siderods were originally silver, but were changed to black in the sixth season.
- In the same season, his brakepipe began facing upwards instead of downwards.
- Between the thirteenth and sixteenth seasons, Diesel was the only character from the model series to still be voiced by the narrator in the CGI series, though this was only in the US narration.
- In some merchandise lines he is referred to as "Devious Diesel". It wasn't until the season 18 episode Disappearing Diesels that he referred to himself by this name.
- Diesel has travelled at well over his top speed of 20 miles per hour on numerous occasions.
- As of 2015, Diesel will have had the most voice actors in the CGI era.
- Diesel's face in the magazine stories is often smaller than in the television series.
- ERTL (discontinued)
- Wooden Railway (normal in two versions, oil splattered, battery powered, and bronze)
- Take Along (several versions; discontinued)
- Take-n-Play (normal and pull back)
- Motor Road and Rail (discontinued)
- TrackMaster (normal, talking, and R/C versions)
- Motorized Railway (coming soon)
- My First Thomas
- Hornby (discontinued)
- Lionel (discontinued, later reintroduced with Trainchief remote)
- My Thomas Story Library (discontinued)
- Bandai (several versions; discontinued)
- Trading Cards (discontinued)
- De Agostini (discontinued)
- Brio (discontinued)
- Mega Bloks (discontinued)
- Discover Junction
- Nakayoshi (discontinued)
- Wind-up (Japan and Australia only)
- Collectible Railway
- Push Along
- Pullback Racers
- Minis (coming soon)
- Bath Toys
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