Jinty and Pug

"Hullo, Jinty! Hullo, Pug! They're friends of mine. I don't know the others."

- Percy, The Eight Famous Engines

Jinty and Pug are two tank engines borrowed from the Mainland to run the North Western Railway while the engines visited England. Jinty ran Thomas' Branch Line while Thomas was away and also helped Thomas when the latter crashed into some buffers and laughed rudely at him.

It is possible that Percy knows them from taking trains to the end of the line and telling the other engines stories, like at the beginning of Percy Takes the Plunge.

Basis
Jinty is based on an LMS 3F 0-6-0T. Pug is based on an LMS 0F Kitson 0-4-0ST. Their names originate from their classes' nicknames "Jinty" and "Pug".

Livery
Jinty and Pug are painted in the British Railways' black livery.

Railway Series
Jinty's role in the Railway Series was replaced with Oliver in the TV series.
 * The Eight Famous Engines (do not speak)

Trivia

 * In the second illustration of "The Fat Controller's Engines", Jinty appears to be faceless.