Percy

 Percy is the junior member of the principal team of engines. He is a happy little chap who's normally quite content puffing around the yard with no particular desire for adventure in the great world outside. He is always keen to oblige, a fact of which the other engines are likely to take advantage.

Fun Fact
Percy is an 0-4-0 saddle tank engine based on engines from the Avonside Engine Company.

Basis
Percy is based on a Avonside 0-4-0ST.

Livery
Percy is painted NWR green with NWR red-and-yellow lining and a number 6 painted on his bunker sides in yellow with red lining.