Diesel 10

Diesel 10 is an evil diesel that worked for Patrick Boomer.

Biography
Diesel 10 was built by Patrick Boomer and his son Peter in 1956 with the sole purpose of hunting and destroying the Sudrian Steam Engines. He was used several times in negotiations to level the playing field or even take the upper hand. The biggest example of this was in the workshop in which Boomer bought Diesel, Splatter, and Dodge. In 1957, he threatened to kill Diesel after Diesel snapped back at him and he warned Diesel that failure to complete his mission meant he wouldn't be the only one wanting to kill him.

In 1959, Diesel 10 was sent to Sodor to fulfill the mission he was built for. He, Splatter, and Dodge were given orders to act friendly towards the steam engines until the plan could go into place. He began speaking of how the steam engines and diesels should work in harmony to try and get the steam engines to trust him. However, a few days after he arrived, the plan was ready to go into effect. Diesel 10 took Splatter and Dodge to Knapford Station to speak to Peter, but they were infiltrated by Donald. Diesel 10 caught Donald and quickly took him away to the works. Shortly after he returned, he found that Splatter and Dodge had already captured Thomas and Edward, and that Gordon was the only one left of the three that was free. Diesel 10 chased Gordon all the way until Wellsworth where he was switched onto the Brendam Branchline. He caught up to Gordon at Crovan's Gate Station where he was outjuked by Gordon and the Fat Controller. Diesel 10 returned to Crovan's Gate Sheds where he ripped Skarloey off the rails and threatened to do the same to Sir Handel. He then returned to the western side of Sodor where he captured Percy and Toby.

Afterwards, he returned to the sheds to see the destruction as well as Duck, Splatter, and Dodge underneath the sheds. He then decided that it was time to escape. He made as far as Knapford Station before he was spotted by Thomas, Edward, Gordon, Percy, Douglas, and Oliver. Gordon chased after him but Diesel 10 managed to derail Gordon at Elsbridge. He held a decent lead even after Donald joined the chase. He made it over the Vicarstown Bridge where after losing part of his claw was derailed by Henry, James, and Diesel. His face was left extremely scarred from the accident and was arrested thereafter. His fate after that is unknown.

Personality
Diesel 10 has a very cold, cutthroat personality with absolutely no mercy for anyone. He buries any potential emotions deep down inside and focuses on his mission: killing the steam engines. Now that his owner and master is dead, Diesel 10 likely has no clue what his future holds, but it's likely very grim. He also is unlikely to make any friends due to his scarred face and scary claw.

Diesel 10 uses his claw and his size to intimidate opponents and colleagues alike. This alongside his deep, menacing voice makes him a force to reckoned with that'll have any engine quivering.

Basis
Diesel 10 is based on a BR Class 42 Warship with a hydraulic claw on top of his roof.

Livery
Diesel 10 is painted an ochre yellow with tan stripes along his side. His claw is a medium brown color and his bufferbeam is a bright red color. It is said that the sharp parts of his claw are more red than brown, representing the blood of his victims.

Appearances

 * Sodor Then and Now 6: Little Engines (S1, E6)
 * Sodor Then and Now 7: Old Faithful (S1, E7)
 * Sodor Then and Now 8: The Work Begins (S1, E8)
 * Sodor Then and Now 9: The Caledonian Engines (S1, E9)
 * Sodor Then and Now 10: Boomer's Reign (S1, E10)

Trivia

 * Diesel 10 was initially going to debut in "Proving Worthy" but his debut was pushed back.
 * In a very early draft, Diesel 10 had only his chassis due to GTSH not having his second Diesel 10. His original Diesel 10 has a very patchy face that will represent scars in future appearances.
 * In a VERY early draft, Diesel 10 picked up a crook working for Boomer and nearly choked him to death.
 * The idea of killing off Diesel 10 in S1 was floating in GTSH's mind for about 5 seconds before he decided against it.
 * The idea of Diesel 10 escaping also floated in GTSH's mind for a good while before it was decided that it'd be too unrealistic for both D10 and Peter Boomer to escape.
 * Diesel 10's deep voice is a contrast to most people's higher pitched, cunning Diesel 10 voice.
 * Diesel 10 was initially going to fight Diesel in the finale.
 * Diesel 10 was originally going to fight Donald in the finale as well.
 * In an early draft, Diesel 10 was going to have a longer confrontation with Sir Handel