The Beast

="Oliver was mutated against his will" = "The Beast" (Formerly Oliver) is a Great Western 1400 Class 0-4-2T locomotive. He is known to be the main antagonist of Sodor Fallout. Before the explosion, he was withdrawn from service and was sent to be scrapped along with his loyal brakevan Toad. He was saved and brought to the Island of Sodor by Douglas. He was given a line called "The Little Western" and ran it with Duck, Donald, and Douglas. It is known that he was friends with Duck, the Scottish Twins, Toad, and many of the other engines.

It is unknown where Oliver was during the explosion, but he later became a huge, spider-like monster that would kill any living thing that got in it's way, making him the most dangerous and horribly mutated out of all the engines.

Appearance
Oliver’s face has somehow fallen off and in its place is a large mouth full of razor sharp teeth resembling a Demogorgon from the Netflix series, "Stranger Things". His appearance is more mutated as the story progresses to be much more terrifying, now featuring tendrils which form what looks to be like spider legs coming out of his body underneath his chassis. He seems to carry around a fake mask which resembles his "concerned" face, which could be used to lure in engines. In the picture above, which shows Duck being killed by Oliver, a tendril-like appendage can be seen coming out of Oliver’s safety valve.

Killed Victims
This list shows the victims Oliver has killed:


 * Percy
 * Gordon *possibly*
 * Duck
 * 'Arry & Bert
 * D10

Trivia

 * TidmouthThunderbolt has Made a model Diorama of The Beast using an Airfix 14xx.
 * A running joke in the community since 2019 was naming him "Olivore" to annoy TidmouthThunderbolt. It wasn't until late 2020 when he was given his canon name.
 * It is currently unknown if Oliver was responsible for the death of Gordon. However, it is likely that he isn’t, as Gordon is an express engine and he was going at speeds that a tank engine like Oliver normally wouldn’t be able to get to.
 * However, it is possible that Oliver's mutations would allow him to go faster than Gordon, as the legs he gains would make him faster than his basis.
 * In the picture where he killed Duck, Oliver appears to be missing his lamp. It's most likely that it fell off when he killed Frederick, as the lamp appears to be crooked.

Theory
Theory 1: The beast Tricked Duck by having Toad and Mail Van, Toad Not knows that Oliver is no longer Oliver and think He bring him to a Safe Place. Before The Beast come to its place of feeding his face fall a bit and that why we see Duck at Ironworks.

Theory 2: Oliver becomes The Beast during the night of July 4th or July 5th - By user EC