Earnest

Earnest is a broad gauge tender engine who appeared in a portrait in Rainbow Hall and the Ffarquhar Stationmaster's house.

Trivia

 * According to a SiF interview, the portrait of Earnest was illustrated by Robert Gauld-Galliers, and was described to be a "made-up character" in the Victorian era to match the various other human portraits featured throughout the series. The portrait was roughly 80 x 60 mm.
 * In 2017, Robert Gauld-Galliers confirmed that at the time of production Earnest was not named, and suggested he be named 'Earnest'.
 * Earnest is the first character in the television series to have a moustache, and the second overall.