Koko, Brewster and Wilson are three young, adventurous trainee "chuggers", learning about working on the railway in the town of Chuggington, with the help of the railway controller, Vee, the older engines, and their human friends.
Elenco: Sacha Dhawan , Imogen Bailey , Andy Nyman , Paul Dodds , Steve Devereaux , Dai Tabuchi , Edward Sharpe , Toby Davies , Warren Clarke , Colin McFarlane , Brigid Harrington .