Sir Topham Hatt is the manager of the North Western Railway.
Season 1: - Lift Bridge (episode), Swagger and Swerves, Redemption (mentioned), Bulldozer, Feeling Lucky?, Rising to the Occasion, Buffer Bashing, Scruff's Scaffolding (mentioned),
Season 2: - Paxton and Norman, Grim Messengers of Doom, Munitions (does not speak), Blunderbuss, Swan Dive
Sir Topham Hatt in Brendam
Sir Topham Hatt on Winston