Rusty is an orange narrow gauge diesel engine from The Island of Sodor.
Keeping things tidy on the Crotoonian Hills Narrow Gauge Railway is a tough job, which is why Rusty is here to help! A dependable (and distinctively two-toned horned) worker, Rusty keeps to time with track maintenance, construction work, or simple freight duties along the line, and is there to remind engines of the proper rules of the lines. Though he and Duncan may have their disagreements, they still work well together, and Rusty keeps a good working relationship with everyone he works with!
Rusty is based on the Talyllyn Railway's Midlander, a Ruston Hornsby diesel, Unlike his basis, Rusty was never fitted with a different shaped radiator.
Rusty is painted orange with yellow lining and white lettering.
- Milan Prsa has considered having Rusty be gender neutral because according to a New York Times article from 1995, that was a concept Britt Alcroft, creator of the 'Thomas and Friends' TV series, considered.