Donald and Douglas

Donald and Douglas (originally known by their numbers, 57646 and 57647, respectively) are twin Scottish mixed-traffic engines, specifically Caledonian Railway McIntosh 812 classes. Douglas, however, tagged along with Donald to Sodor in order to escape from scrap, despite Donald being the only engine expected. After proving themselves to be really useful, they were both allowed to stay. They now work as utility engines on the NWR; working wherever they're needed. They work primarily on The Little Western, but sometimes on Edward's Branch Line (Railway Series only) and The Main Line.

Bio
Donald and Douglas were designed by John F. McIntosh and built by St. Rollox Works for the Caledonian Railway. Upon nationalisation, they became part of the Scottish Region of British Railways, where they were renumbered 57646 and 57647. In 1959, Sir Topham Hatt needed a goods engine and by his request, BR decided to transfer 57646 (Donald) to Sodor.

To Sir Topham Hatt's surprise though, two engines arrived. Donald's twin Douglas (57647) could not stand to be separated from his brother, and was smart enough to realise he would eventually be scrapped if he stayed in Scotland. Unfortunately for Sir Topham Hatt and any other worker, neither engine could be told apart: both claimed to have forgotten their numbers, and indeed their numberplates had "slyly slipped off" during the journey from Scotland. This caused the Fat Controller to keep both until he could determine which engine was freeloading on his hospitality. It was later revealed that this piece of skulduggery had been planned not only by the two engines, but also by their drivers and firemen, who were related as well.

The Fat Controller was unaware of Douglas' motive and threatened the two that whichever engine he found out to be the truant would be sent home. Both engines resolved to give outstanding service so that Hatt would want to keep both of them. This plan quickly went to pieces, however, after Douglas accidentally shunted Thomas' special coach, full of passengers, into a siding at Tidmouth, causing a great deal of fury for the passengers. Things were more complicated when Donald crashed into a signalbox at Tidmouth and Douglas accidentally destroyed The Spiteful Brake Van.

Basis
Donald and Douglas are both based on the Caledonian Railway "McIntosh 812" 0-6-0's. Edward's Ghost Engineis another member of this class minus the tender and nameplate.

Appearances
The Missing Coach