Ryan is a purple tank engine who works on the Harwick Branch-line.
Ryan was brought to help run Thomas' Branch Line while Thomas was sent to help out at the construction yard during the building of the Harwick Branch Line. After Thomas fell into a deep cavern, Ryan was once again brought to do his job while he was being repaired. After taking bad coal, he accidentally set fire to some dynamite, which Thomas managed to dispose of quickly. He later helped stop The Pirate Ship, which was being used by Sailor John to escape with the treasure.
He now runs the new branch line as the goods engine, with Daisy as the passenger engine.