Sir Topham Hatt, otherwise known as the 'Fat Controller', is a fictional character from The Railway Series, a British children's book series written by Rev. Wilbert Awdry along with its adapted media of Thomas & Friends (aka Shining Time Station in the U.S.).
He is the director of the North Western Railway on the Island of Sodor.
A secret crew of LAPD comes together under the leadership of John O'Mara (James), a former World War II soldier, to tear down the world of one of the most dangerous gangsters, Mickey Cohen (Diesel), who runs the city.