Belle is a bold, big, blue tank engine, who is fitted with two water cannons atop her tanks, from which she can shoot water to fight fires. She also has a whistle and a big brass bell. Belle is lively, loud and proud, with a big personality. While she may come across as bolshie, highly self-assertive and overwhelming, Belle will always have the best of intentions at heart. She always wants to do her best and be the best she can be, causing her to be daring, energetic and bursting with enthusiasm