Molly is a yellow tender engine from The Island of Sodor. She made a couple of cameos in Railside Tales. Her main appearance has yet to be determined.
Molly is based on a Great Eastern Railway D56 Class "Claud Hamilton", classified as D15 by the London and North Eastern Railway, with a Belpaire firebox and the smaller 'water-cart' tender.
Molly is painted bright yellow with red boiler bands, red and bronze lining, and a white roof and wheel rims.