Dai Station isn't too keen on Bluebell riding around with Ivor, but she soon proves her worth when the engine is derailed.

True Companions: Ivor and Jones the Steam – their bond is very much like a parent fussing over a child at times, but Jones trusts Ivor implicitly, and is always looking out for his beloved engine's happiness. Mr Williams of head office breaks the terrible news to Jones and Dai that the railway is to be sold and Ivor might have to do shunting at Pontypool. Then Mr Dinwiddy has a brainwave. When not driving Ivor or helping the engine with his latest flight of fancy, he enjoys fishing and day-dreaming. Dai Station Jones the Steam is concerned that Ivor is not himself. Along with Dai the Station they visit the Chief Engineer, who tells them that Ivor is physically in excellent condition, but that obviously something is bothering him. Postgate, Oliver; Firmin, Peter (2006). Ivor the Engine: The dragon (2nded.). London: Severnside. ISBN 0-9552417-3-1.

In this section

Jones and Dai are relaxing when they spot some strange objects in the sky. The source appears to be Mr Dinwiddy's goldmine.

Jones and Dai are not getting anywhere trying to find a home for Idris and the other dragons. Jones decides he must go to Lanmad and ask for the help of Mrs Griffiths. Playing with Fire: Idris, naturally because he's a dragon. He can control his flames easily, and even concentrate it to relight pilot lights on gas-operated stoves. Edwin Jones is Ivor's driver. He is a cheerful and kind-hearted man who perhaps sympathises more than most railway staff with Ivor's idiosyncrasies. Postgate and Firmin describe him as "an ordinary engine driver who is there to cope with whatever needs to be coped with". People who are new to the area find him rather eccentric for talking to his engine. Volcano Lair: Idris the Dragon and his family live in Smoke Hill, a former volcano that eventually becomes extinct. A major subplot in the series is about figuring out an alternative home to keep the dragons warm, as they cannot survive long in cold climates.A small, red heraldic dragon who also sings in the choir for a time. Having been hatched from an egg in Ivor's fire, he lives with his wife Olwen and their twins, Gaian and Blodwyn, in the extinct volcano Smoke Hill. As well as singing, he proves useful by cooking fish and chips for the choir using his fiery breath. Postgate, Oliver; Firmin, Peter (2006). Ivor the Engine: The first story. London: Severnside. ISBN 0-9552417-0-7. Idris is a male red Welsh dragon whom Ivor and Jones the Steam found at Smoke Hill. They initially thought his egg was a stone and used some tongs to remove it and put it in Ivor's fire box. The baby dragon hatched out of it in Ivor's cab. Idris is a part of the choir. Whilst the choral society was singing a voice came from within Ivor’s boiler, singing along with the song, and out of his funnel popped a very small flaming hot Heraldic Welsh Dragon. Idris loves to sing and his favourite song is ‘Land of my fathers’. Postgate, Oliver; Firmin, Peter (2006). Ivor the Engine: The elephant. London: Severnside. ISBN 0-9552417-2-3.

The distinctive puffing sound made as Ivor moved was voiced by Postgate, and the show's music was composed by Vernon Elliott. Ivor's 'voice' was mostly sounded by a bassoon.The choir are going on their now annual outing to Tewyn beach. They are planning a very special surprise for Ivor. The Speechless: Ivor can't talk like a human, but manages to communicate with Jones via his whistle and steam exhaust. Given Jones' reactions, Ivor can be quite a Deadpan Snarker at times! His driver was Edwin Jones, known as Jones the Steam, who enjoyed fishing and daydreaming. Ivor's other friends included stationmaster Dai Station, portly choirmaster Evans the Song, fellow chorister Idris the Dragon, and fairground owner Morgan the Roundabout. Mr Morgan gave Ivor some pipes from his steam calliope to allow him to sing in the choir. Behind the scenes An elephant keeper from India, who works for Charlie Banger's Circus. He is in charge of the elephants Alice, George, Margaret and Clarence, who all obey him without question. When the colour series was subsequently released on DVD, some of the episodes whose content linked, were edited together, with the relevant closing and opening titles and credits removed.