Farnsworth is a snobbish passenger diesel who lives at Kahlville Junction. The local train between Kahlville and Celgreb City, Farnsworth is easily described as "too big for his wheels", thinking that he should only pull coaches and passenger, and nothing else. He also thinks he shouldn't get up so early, claiming it's bad for his "chug" and that he's a "refined engine". This attitude, as one would expect, is not well like among other Crotoonians, especially his shedmates in Kahlville. 