- Allies: Thomas, Skarloey, Rheneas, Sir Handel, Peter Sam, Rusty, Diesel, Owen, Merrick, Victor, Luke, Diesel 10, Den, Dart, Norman, Sidney,Steam engines
Paxton is a young diesel who likes the steam engines, especially Thomas. He can be a bit gullible, enabling other diesels to take advantige of him. He is kind-hearted and blindly follows his friend through their endeavors.
Paxton is painted dark green with lime lining and red siderods and wheels with black rims.
Paxton is based on BR Class 08, yet in The Ulimate Character Guide, he is based on BR Class 10.
- Fiery Flynn (not named : cameo)
- Bust My Buffers (not named : cameo)
- Gordon Runs Dry
- Wayward Winston
- Luke's New Friend (cameo)
- Day Of The Diesels (not named)
- Blue Mountain Mystery
- King Of The Railwat
- Keith Wickham (UK/USA; Day of the Diesels only)
- Steven Kynman (UK/USA; Blue Mountain Mystery onwards)
- Wooden Railway
- Take N' Play
- Paxton's theme is the Roll Call from the Day of the Diesels theme song, which he shares with Den, Dart, Norman, and Sidney.
- The Coast Guard (TUGS)
- Inverness or Seabright (Theodore Tugboat)
- Cyrus (Sonic the Hedgehog)
- R.O.B. (Super Mario Bros.)
- Little Cat F (Dr. Seuss)
- Baloney the Orange Dinosaur (Animaniacs)
- Cacena (Pokemon)
- Escargoon (Kirby: Right Back at Ya!)
- Magic Man (Adventure Time)
- Main article: Paxton the Young Diesel/Gallery