Molly is a large, powerful and bright yellow engine.
Molly is a large, powerful, and bright yellow engine. She is proud of her strength, but is also quite sensitive. She wants other engines to think the best of her, and steams away from any conflict.
- Molly's face is based on promotional images. Her actual face in the show is much smaller.
- Molly's chassis has a unique arrangement to accommodate her larger driving wheels.