Kenji is a high-speed electric engine from Japan, who visited Sodor for The Technology Fair. Kenji is the first Thomas Wood item to have a non-rectangular secondary component.
Kenji first arrived on Sodor via the Rail Ferry at Brendam Docks, from which he was transported to Ulfstead Castle by Gordon and Rebecca. Electrical wires were set up especially for him around the Estate Railway.
Kenji was publicly revealed on the first night of the Technology Fair, where he impressed both the crowd and the other engines. After his first run with his passenger coach, he met up with Thomas and talked to him about his around-the-world trip and his Japanese friend, Hiro.