Stephen Hatt is one of the main antagonists of Season 3.
He is Charles Hatt's son and Sir Topham's grandson. He is currently in alliance with Ryan to cause mischef for Sodor and take control of the North Western Railway. He is later revealed to be the son of Simon Johnson. After framing Phil Aardman and taking over his railway, Stephen was taken to court and recieved five years in prison.
- Season 3: Inheritance Parts 1, 2, 3, 4, 5, 6 and 7