Bradford is Samson's brake van.
Bradford was brought to Sodor by Samson, and when he noticed Thomas struggling with his Troublesome Trucks, Bradford offered to be his brakevan for the day. Once coupled up, Bradford quickly took charge of the trucks and barked at them to behave. Thomas was very impressed until he found out how much Bradford likes to stick to the rules of the railway, which makes his trains very late. Thomas decided to take a train without Bradford, but ended up running into trouble. Bradford eventually went back to the Mainland with Samson.