- "You always go so slowly. We'll be lucky to make it to the Transfer Yards by tea time!"
- — Duncan, Cool Truckings, eleventh season
In Madge's first appearance,
she had to take Duncan to the other side of the yards by road due to snow blocking the tracks. He teased her that she was a slow-poke because the journey was boring. So she decided to make it exciting by driving fast, skidding through the countryside. This ultimately led to them almost falling off the edge of a cliff. Luckily, they made it out safely.
Later, she had to deliver cleaning supplies for Skarloey and Rheneas when they were going to lead for the Engine Rally and Country Show.
She was also the first character that Thomas told about his discovery of Great Waterton.
What Madge lacks in elegance, she makes up for in strength and personality. She acts as a motherly figure to the narrow gauge engines, but can be playful and loves a good joke.
Madge is based on a 1964 Scammell Scarab 6-ton tractor lorry. This type of lorry was very popular with British Railways. About 60 are preserved.
Madge is painted green along her trailer and the bottom half of her cab, whilst the top half of her cab and her headlights are painted cream.