Stephen was one of the earliest engines ever designed, and he can remember when there were still horses pulling wagons and coaches on the railways. In his day, he was one of the fastest engines and won races. However, these days, newer engines are faster and stronger than Stephen, but he is still Really Useful, offering tours to Ulfstead Castle visitors. Stephen has a lot of experience, which he can draw on to continue to find new ways of being Really Useful. Stephen is a funny character who is very popular.
Stephen’s name derives from the Stephenson’s Rocket; this is why Stephen’s nickname is ‘THE ROCKET’.