Billy Twofeathers' engine is named the Rainbow Sun. In Thomas and the Magic Railroad it was played by the Strasburg Railroad's #475, built in 1906 and formerly on the roster of the Norfolk and Western Railroad. In the opening and closing credits of Shining Time Station the locomotive is played by Union Pacific 844. In 'Tis A Gift the Rainbow Sun was played by Grand Canyon Railway's No. 18 that lead The Northern Star. In Once Upon a Time the Rainbow Sun was seen and it was played by the South Simcoe Railway's No. 136 that lead The Founder's Day Express.