Rosie is a lavender tank engine.
- Season 1 - Repairing Old Slow Coach, Rosie and the Flying Kipper and Bluebells Forever
- Season 2 - Dennis and Norman (mentioned), Dares, The Crashing Kipper (cameo) and Tender Engines Don't Shunt!
- Season 3 - The Welsh Coal Hunt (cameo), Diesel Saves the Day (does not speak), A Train for the Queen (does not speak), and Hector the Ballast Hopper (mentioned)
- Season 4 - Flora and Koby (mentioned), Koby and Bumble and Bear and the Fish
- Season 5 - Kevin in Charge (cameo), Gordon Gets Crushed, Something Smells Fishy, Kelly's New Friend (cameo), and Thomas Runs Away
- Season 6 - The Wrong Sort of Coal (cameo), Triple Trouble,