An F40PH Via Rail Canada diesel engine, hard worker and the fifth character of the show.
Some say he is the brother of Fansworth. But he's not really. Though he and Fansworth have known each other like brothers since they were F7 units back in the late 50s.
He may not be seen much since he's absent to keep working somewhere else. But he'll come by for visits whenever he has day offs.
However, in one episode (hopefully), he may have a love interest with a female diesel engine who's also a friend of his old friends. But not an easy one when it comes to that.