The Fat Controller
From Sodor Island Forums
"Mah wurd, tha'sh a vewy fahn cashule!" - The Fat Controller, Toby's Discovery.
The Fat Controller is the overweight controller of the Sodor Railways. He is frequently parodied by members and answers to "Sir Topham Hatt". His accent is very mysterious, at least, in the UK and Australia. He appears to speak in a mix of dialects - Cumbrian, Yorkshirian, Lancastrian and Liverpudlian, with a lisp on top. It sounds most peculiar.
Nowadays, Sir Hatt features in most episodes of the TV series, and likes to randomly appear out of nowhere, to inform the engines that they have caused Confusion and Delay.
He is married with a mother and grandchildren.