Gordon is a pompous engine, who thinks highly of himself because of his abilities. He is usually quite conceited, but in a mutual bond, he's more of a bigger brother figure. He is an GNR A1 "Pacific" Tender engine, and can usually be seen pulling the premiere Express, "The Wild Nor Wester".

One day, a pompous Gordon refuses to pull a goods train. He tries to jam the turntable, but he rolls off the turntable, through a fence, and into a ditch. The events of his standalone story happen after this.

I have very few preferences for Gordon's Voice. He just needs to have some vocal range, and sound a little snooty. The most popular vocal depiction of Gordon is a deep voice, first presented by Ringo Starr.

Gordon was built for the Great Northern Railway, so I gave him a Northern English accent.

References:

Kerry Shale as Gordon (US)

Thomas Meets the Queen (Season 4, Episode 23, US, George Carlin) (2:23)

Edward's Saga  (9:42)

EP 1: The Deputation

EP 2: A Close Shave

EP 6: Paint Pots and Queens (Starring Role)

EP 7: The Flying Kipper

EP 8: Edward's Exploit