Thomas the Tank Engine Wikia


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This article is about the engine. You may be looking for the Story Library book.
"Hello, Thomas! What are you doing?"
— Rosie, Thomas and the Birthday Mail, tenth season



  • Class: SR USA Class
  • Designer: Howard G. Hill
  • Builder: Vulcan Iron Works or H. K. Porter, Inc.
  • Built: 1942 or 1943
  • Gauge: 4 ft 8 1⁄2 in (1,435 mm)
  • Configuration: 0-6-0T

Rosie is a lavender tank engine who looks up to Thomas. She works as both a shunting engine and a mixed traffic engine.


Rosie began idolising Thomas to the point of hero-worship and imitation. Though this is said to be the most sincere form of flattery, it only served to irritate Thomas whilst he was trying to deliver a special birthday post train to Alice at High Farm. He even started to try and avoid her, but after Thomas had an accident in the course of delivering this train, Rosie helped him and he came to respect her.

Rosie was later called to help Thomas shunt trucks until Hector frightened her away.

Rosie was later charged with acting as a back-engine to Emily with the funfair special. Wanting to take the train herself and, thinking she was doing Emily a favour, Rosie succeeded only in creating confusion and delay on a grand scale, but eventually set things right.

Rosie rescued Thomas when his fire went out after playing a game of "splish, splash, splosh". She later let Diesel take her train of flowers which was headed for market.

One day Rosie had a cracked wheel, so Thomas and Butch brought her a new one.

On Sodor Surprise Day, Thomas bumped some coal trucks to surprise Gordon, but ended up surprising her instead. She is later seen being cleaned up with Whiff at the washdown, and joins Gordon and Thomas at Callan Castle to see Harold decked out in bright lights to make Gordon laugh.


Rosie is a friendly, respectful, and helpful tank engine. She and Thomas like to have fun and also like to help each other when they are doing work. Rosie could be described as a feisty, energetic tomboy who is not afraid to work hard.


Rosie is an SR USA Class 0-6-0T. Fifteen of these engines were sold to the Southern Railway where they were used as dockyard shunters at Southampton, where they worked alongside the E2s (Thomas' class). Both classes were replaced by BR Class 07 diesels (Salty's class).


Rosie is painted lavender with light grey tank panels, gold boiler bands, and red detailing on her wheels and metalwork.


Television series


Learning Segments:

Magazine stories

Rosie also appeared in the magazine stories, Frying or Flying, Mighty Magnet!, Really Useful Rosie, Red for Rosie, Rushing Around, and Stone Signal.

Voice Actors


  • Rosie was the first engine of an American class introduced in the television series. However, if Railway Series characters were counted, she would be the second character, the first being Stanley.
  • Rosie's model is currently on display at Drayton Manor.
  • In Red for Rosie, one image depicts her with a tender.
  • Rosie is almost always missing her blush and lip gloss in various merchandise.
  • Rosie's whistle is a higher pitched version of Thomas'.
  • A magazine fact file states that she works on Thomas' Branch Line.
  • Rosie has both her whistle and connecting rods in different positions compared to her prototype:
    • Rosie's whistle is positioned behind her rear dome whilst her prototype has its whistle positioned on the right side of the middle dome.
    • Rosie's connecting rods are attached to her middle driving wheels whereas her prototype has its connecting rods attached to the rear driving wheels.
    • Her funnel is also taller than her basis.
  • Rosie has had a few modifications throughout the television series, these include:
    • Season 13:
      • Her face became slightly smaller.
      • Her funnel and steam pipes became thinner.
      • Her lamp-irons were removed.
      • A detail on her coal bunker has been pushed in.
    • Mid-Season 17:
      • She gained a permanent headlamp of the same design as Ferdinand's, mounted in front of her funnel.
    • Tale of the Brave:
      • She gained a permanent tail-lamp.



Merchandise Gallery

See also

North Western Railway
ThomasEdwardHenryGordonJamesPercyTobyDuckDonald and DouglasOliverBarryThe Austerity EngineThe Red EnginesDaisyBoCoBearThe Works DieselPip and EmmaPeel Godred Engines
HarveyEmilyFergusArthurMurdochMollyNevilleRosieWhiffBillyStanleyHankFloraVictorCharlieBash and DashFerdinandScruffBellePorterGlynnRyanDerekDiesel 10'Arry and BertSaltyDennisDenDartSidneyPaxtonNormanPhilipFlynnWinstonStafford

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