Bulgy is a double-decker bus, who is very opposed to railways.
Bulgy hates railways, and believes that some day they will all be replaced by roads. He even carried a poster on his side telling people to "JOIN THE ANTI-RAIL LEAGUE". His favourite phrase is "Free the roads!"
Bulgy tried to steal Duck and Oliver's passengers by pretending to be a railway bus. Bulgy was determined to get the passengers to Tidmouth before Duck, but got stuck under a bridge after attempting to take a short cut. After Duck safely brought his passengers across the bridge and back to their destination, Bulgy's lies were exposed, and soon nobody would believe his destination boards. Eventually he was turned into a henhouse and placed in a field near the bridge, now nicknamed Bulgy's Bridge.
Bulgy was later given a second chance and was brought back to the road to help with passengers while Thomas and Emily needed repairs, but after his driver brought him back to his field for the night after he was restored, the chickens who had lived in him nestled in his luggage racks and caused trouble the following morning. He was turned into a playhouse and a greenhouse before he was finally turned into a mobile vegetable stand. Bulgy enjoyed his work delivering vegetables, because they do not lay eggs and they never complain. Despite this he still wanted to become a bus again. He got his wish and has been turned back into a bus.