Brewster is a strong diesel-electric locomotive built for heavy loads. He is British Rail blue with yellow face; Brewster is similar to a BR Deltic diesel engine, but with a single end-cab. He is a member of the Chuggineers, the building team on Chuggington. He likes to haul heavy loads on pick-ups, and often picks up too much load. Other Chuggers may rush when given a task, but Brewster asks questions if he is unsure. He is dependable, respectful and can be relied on when there is trouble.