Sheffield

Sheffield (formerly Sixteen) is a former ironworks tank engine, Like Wilbert he is a "Hunslet WD 0-6-0ST". He first appears in the special, Wilbert the Forest Engine. He becomes jeleous of the way Wilbert works, which leads to confusion and delay. But with the help of Wilbert he soon learns how to be a really useful engine. It was later revealed that he was Sixteen, and engine who had a big accident in the ironworks. Sheffield has a kind and caring heart, but doesn't always show it on the outside. He is inpatient, and dislikes diesels, even nice ones!