The television series Thomas & Friends and the original Railway Series books are well known for its anthropomorphic railway engines. This article lists the characters over the years that are not rail-based.
Terence is an orange tractor fitted with caterpillar tracks. He often pulls other vehicles who have become stuck. When Thomas first encountered Terence, he insulted Terence’s caterpillars, but later discovered their usefulness when Terence pulled him out of a snowdrift. Terence also had a removable bulldozer blade that he used to clear snow or any sort of rubble. He first appeared in Season 1 and has appeared in Seasons 2, 3, 4, 5, 6, 7 and 21. He also appeared in the Season 10 music video "H is for Harold" and had a non-speaking role in The Great Discovery.
Terence works on Farmer Finney's farm, adjacent to Thomas’ branch line.
Voice Actors
Bertie is a red bus. He has been good friends with Thomas ever since their great race. He first appeared in Season 1 and has appeared in every season ever since. He also had speaking roles in Thomas and the Magic Railroad and Sodor's Legend of the Lost Treasure and non-speaking roles and cameos in The Great Discovery, Misty Island Rescue and The Great Race.
Voice Actors
Discovered by Edward in a scrapyard on his branch line, Trevor the traction engine was due to be broken up before he was saved by the Vicar of Wellsworth. He now lives in the Wellsworth Vicarage Orchard and is often used for light haulage work, and at the vicarage fete to give all the children rides. He is painted dark green with red lining, gold boiler bands and red wheels. Trevor first appeared in Season 2, and has appeared in every season since, except seasons 11, 13, 14, 16, 17, and 18. He also has a minor role in Journey Beyond Sodor.
Voice Actors
Harold is a white helicopter who patrols the skies of Sodor. Nicknamed "whirlybird" by the engines, he enjoys a good-natured rivalry with them, especially Percy. He first appeared in Season 2, and has appeared in every season of the show ever since, except seasons 11 and 13.