Edward is one of the older engines in Sir Topham Hatt's railway. The most important thing about Edward is that he's good-willed and kind. When the other engines misbehave, it's Edward that Sir Topham Hatt turns to in order to calm everyone down and restore order.

Edward did not have a number on his side in the first original stories. It was only after Book 6 in the Railway Series that Edward received his #2, which he is now known for.