Donald and Douglas are twin Scottish engines
| Donald | |
|---|---|
 | |
|
Numbers |
9 (57646) |
| Douglas | |
|---|---|
 | |
|
Number: |
10 (57647) |
Appearences[]
Season 1 - Races, Repairing Old Slow Coach (Donald cameo; Douglas deleted scene), and Donald, Douglas and the Fallen Tree
Season 2 - The Magic Railroad, Tim and Tom, Sodor Blackout (cameo), and Thomas and the Christmas Surprise
Season 3 - Murdoch and the Heavy Goods Train (Douglas only; cameo), The Forest Fire, Musical Whistles, and Snowmen
Season 4 - Hiro's New Snowplough, The Trouble with Trucks (Douglas only),