Donald and Douglas
  • Numbers: 9 and 10, formerly 57646 and 57647
  • Class: CR 812
  • Designer: John F. McIntosh
  • Builder: St. Rollox Works
  • Built: 1909
  • Configuration: 0-6-0
  • Top Speed: 55 mph
  • Arrived on Sodor: 1959

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.


coming soon


Donald and Douglas are Scottish twin engines. Donald is numbered 9 and Douglas 10. They are practical and level-minded, but, despite their maturity, they enjoy playing practical jokes and have been known to impersonate one another in the past. When they arrived on Sodor, they caused the Fat Controller confusion, as only one engine had been expected. The twins' numbers allegedly slipped off on the way and neither could recall them; a ploy to prevent one of them losing their twin to scrap. Namely, it was Douglas who had not been expected. His salvation from the scrap-heap may have contributed towards his decision to later aid Oliver in his own daring escape from scrap.

Donald and Douglas are very able workers, strong performers, and handle any task well. They are fully capable of being firm with the other big engines, such as Gordon and Henry, and even the troublesome trucks know better than to try their tricks on them. They are both used to harsh winter conditions too. Coupled back to back, with a coach between their tenders, they are very capable of patrolling the lines, clearing them of the snow. The twins both pull their weight on the Main Line and both Duck and Edward's branch lines. They can enjoy a joke with any engine. They are happy to act as the brawn of the Fat Controller's steam-driven goods haulers. Between the two, Donald tends to be the charming, witty joker whereas Douglas is the smart, quick-thinker, calmer-natured one of the pair. Both display a keen sense of wit and the pair usually get to have the last laugh, more often taking the moral high ground. But that does not mean they will not be just a little bit smug about it when a deserving engine meets their comeuppance.

Donald and Douglas hate to be parted from each other, but, like most twins, they often have their arguments among themselves and can squabble with one another. They do, however, love playing practical jokes on the other engines, and they use to impersonate one another. They were fitted with nameplates to specifically end this element of their humour. Donald and Douglas used to also have a strong dislike of diesels. But over time their dislike for diesels has softened and they appeared to have grown accustomed to their diesel companions.


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


According to the Railway Series, Donald and Douglas were painted black from construction and arrived on Sodor in the BR's black goods livery with red-and-white lining on their tenders. They remained as such (with the addition of numbers on their tenders in yellow) until it was decided that both engines could stay, at which point they requested to be repainted in the NWR's blue livery with red-and-yellow lining. They apparently like the colour, as it reminds them of the Caledonian Railway, where many of their shedmates carried a similar shade of blue. They received red nameplates with their names in gold at the same time.

In the Railway Series, they carry two builder's plates on the sides of their cabs.

In the Television Series, the twins arrived in BR lined black and have remained in this livery ever since.



Voice Actors


  • Joe Mills (UK/US; Sodor's Legend of the Lost Treasure - The Return of Sailor John)
  • Rob Rackstraw (UK/US; twentieth season onwards, excluding The Great Race and The Return of Sailor John)
  • Yūki Satō (Japan; second - seventh seasons)
  • Kyousei Tsukui (Japan; eleventh season onwards)
  • Fabrice Trojani (France and French speaking Canada)
  • Piotr Bajtlik (Poland; Sodor's Legend of the Lost Treasure onwards)
  • Nir Ron (Israel; Sodor's Legend of the Lost Treasure)
  • Fred Meijer (The Netherlands; Sodor's Legend of the Lost Treasure onwards)
  • Ricardo Bautista (Latin America; Sodor's Legend of the Lost Treasure onwards)
  • Carsten Krabbe (Germany; Sodor's Legend of the Lost Treasure onwards)


  • Joe Mills (UK/US; Sodor's Legend of the Lost Treasure onwards)
  • Takeshi Endo (Japan; second - seventh seasons)
  • Yūki Satō (Japan; Thomas Comes to Breakfast and Thomas and the Special Letter only)
  • Kyousei Tsukui (Japan; eleventh season onwards)
  • Bernard Demory (France and French speaking Canada; sixth season only)
  • Fabrice Trojani (France and French speaking Canada; Sodor's Legend of the Lost Treasure onwards)
  • Cezary Kwieciński (Poland; Sodor's Legend of the Lost Treasure onwards)
  • Gadi Levy (Israel; Sodor's Legend of the Lost Treasure)
  • Fred Meijer (The Netherlands; Sodor's Legend of the Lost Treasure onwards)
  • Miguel Ángel Ruiz (Latin America; Sodor's Legend of the Lost Treasure onwards)
  • Ole Jacobsen (Germany; Sodor's Legend of the Lost Treasure onwards)


  • The Reverend W. Awdry only made a model of Donald for his model railway; there never was a Douglas model. The model is currently on display at the Narrow Gauge Museum in Tywyn.
  • According to the magazines, Donald and Douglas' drivers are related.
  • Donald and Douglas' television series models are currently on display at Hara Model Railway Museum in Japan. As a result of the eye mechanisms not being replaced after season 12, new eyes and pupils have been put in for display.
  • In the My Thomas Story Library series, the twins were painted blue following their being allowed to stay, just as they were in the Railway Series.
  • The twins' original numbers are an in-joke. The 812 Class numbers only went up to 57645.
  • In the Railway Series, Donald and Douglas are nicknamed "The Caledonian Twins". In the television series, they are nicknamed "The Scottish Twins". This is because they originated from the Caledonian Railway, in Scotland. 
  • Donald and Douglas' models did not have any watertanks on their tenders, this is also carried on to their CGI models. However, this was present on their large scale models.
  • Donald and Douglas have had many modifications throughout the television series. These include:
    • Season 3:
      • Their nameplates were moved from their smokeboxes closer to the centre of their boilers.
      • Their brake pipes were moved from their left (viewer right) to their right side.
    • Season 4:
      • Their nameplates were moved precisely to the centre of their boilers.
      • Their whistles became a higher pitched version of Duck's in some episodes.
    • Season 6:
      • Their brake pipes now face upwards.
      • Douglas shares Donald's whistle sound.
    • Season 11:
      • Both of the twins share Duck's whistle sound.
    • Season 12:
      • Their cheekbones disappeared.
    • Sodor's Legend of the Lost Treasure:
      • Their faces are different from their Season 12 appearance.
      • Their nameplates are smaller and have moved back to the sides of their smokeboxes, like in the second season. Their nameplates are now curved to their smokeboxes rather than a flat plate.
      • They have rivets on their bufferbeams and smokeboxes.
      • Their handrails are thicker.
      • Their cheekbones are restored, though somewhat less prominent compared to earlier appearances.
      • Both twins gained permanent lamps and taillamps.
      • Their funnels and cabs are more accurate to their basis.
      • They gained a stepladder in the middle of their running boards, like in the Railway Series.
      • Their whistles changed to Stephen's at a lower pitch.
      • They are slightly smaller.
      • Their bufferbeams are lower to the track.
      • Their tenders slightly decreased in height so the lining matches the lining on their cabs.

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