Thomas

Thomas is an blue tank engine who works on the North Western Railway. He originally worked as the station pilot at the Big Station but longed to leave his yard to go out and see the world. After helping to rescue James from a nasty accident, Thomas was rewarded with two new coaches, Annie and Clarabel and was given the responsibility of running the Ffarquhar Branch Line, where he works there to this day.

Biography
Before coming to Sodor, Thomas lived at Brighton, where he worked alongside several other engines. He was brought to the North Western Railway when the Sir Topham Hatt was in need of a new tank engine to shunt trains at Knapford and was originally painted teal-green before receiving his blue livery.

Thomas was cheeky at first and enjoyed teasing Gordon by waking him up while he was resting at Knapford. Gordon managed to get back at Thomas by leaving the station too quickly before he could be uncoupled and though Thomas learned his lesson about teasing Gordon, he wanted to see more of the world and go beyond the yard at Knapford station. He was given the chance to pull his first passenger train when Henry became ill but left the station too early when he mistook the guard's whistle for Edward's train for his own, leaving behind his coaches and passengers. Thomas was stopped by a signalman and he went back to the station to fetch his train.

Thomas was teased relentlessly about this mistake by Gordon and James, though Edward felt sorry for him and offered to let Thomas take his goods train while he took care of his shunting duties in the yard. Thomas could hardly contain his excitement and was too excited to listen to Edward's warning about the trucks, believing that he could handle them easily. However, as he reached the top of Gordon's Hill, the trucks began pushing Thomas down the line, causing him to run out of control and nearly crashed until he stopped in a siding.