Douglas

= "Frantic Scottish Engine" = Douglas is a black Caledonian Railway 812 class 0-6-0 tender engine who arrived from Scotland with his twin Donald. He sports a pair of nameplates on himself as well as the number ten on his tender.

Edward, Thomas, and Topham found Douglas alive. While the group was leaving Tidmouth, Douglas rushed down the line and screeched to a halt when he saw them. He immediately asked where Donald was. Edward told him about his last encounter with the Scottish Twin, and told Douglas that it was unlikely he survived the blast given how close he was to it. Douglas was incredibly upset but pulled himself together as he joined the group. Further down the line, the group discovered Boco, James and a train full of workers.

Douglas was informed that Donald's driver had attempted to steam up Donald's dry boiler as a means of escape after a battle broke out of Brendam Docks. In an attempt to raise steam quickly, Donald's driver tightened his safety valve shut. Donald screamed in pain at the immense pressure being built up, but it was too late as Donald's boiler exploded. Douglas was almost heartbroken and ran down the branchline to Brendam to find him

Theory
Theory 1: Oliver was brought to the power plant, presumably by Douglas, to be exposed to the radiation to see if it would effect engines - By user Sam