Belle is a big brave blue engine. She has two water cannons high on her boiler from which she can shoot water to fight fires. Belle would be overwhelming if she wasn’t so nice, even Cranky likes her! She wants to do her best and be the best. Belle realizes that she isn’t the fire engine Sodor needs and supports Flynn in every way. In fact, when Flynn makes mistakes... it's Belle who is always there to help him out.
Belle has both a whistle and a bell. Belle is based on the BR Standard 2-6-4 Class 4MT engine of the British Railway.