Casey Jones is an engineer who works with Johnny on the mail trains.
Casey Jones is one of the bravest engineers ever to drive a steam train at high speeds, always determined to deliver any train loads right on time, much like his real life counter part John Luther "Casey" Jones.
Casey used to work for the Illinois Central together with his trusty locomotive, and best friend, who he named Johnny. But after getting involved in a nasty head-on collision with a slow freight, which they got barely alive out of, he switched jobs to the F&FT R. T. Co. Ltd, brought Johnny to The Works for a complete overhaul, and to this day, the two are running the express postal service for the Crotoonian Mail Co. Even though he promised to take extra caution, it still won't stop him from looking for ways to bring their deliveries on time if falling behind schedule.