Ivor is a small green tank engine who lived at Kahlville Junction for a period before transferring to The Seaside Railway.

A small Welsh tank engine, Ivor likes doing things that people like to do, making tea with water from his boiler, and being with his many friends. That said, he can be willful and disobedient at times. He doesn't like timetables and, ironically for a tank engine, hates shunting. He is rarely seen without his cheerful and kind-hearted driver, Jones The Steam.