Dai Station is the stationmaster at Llaniog station on the Merioneth and Llantisilly Rail Traction Company Limited.

He tends to be a bit glum and grumpy because he still minds about boring things like time-tables and Regulations.

He is a stickler for rules and regulations and can been seen checking his rule book regularly, though he can take them too far too often. One thing that really upsets Dai is when Ivor goes off on his own. He has a tendency to become animated, quoting regulations and saying that engines aren’t supposed to do what they want, when they want, and instead should be working.

In his spare time he likes to fish and relax by the river. Even Jones will join him, not for fishing, but relaxing.

When Mr Dinwiddy put forward the idea of buying the railway with his gold, it was Dai that cautioned against it, as he could see others arriving to find gold in the hills, starting a gold rush and spoiling the landscape. They all agreed that this wasn’t the way to save the railway.