Paxton, nicknamed Pax, is a green diesel engine. He often brings slate down from the Blue Mountain Quarry to other parts of the Island.
Paxton was one of the diesels who took over the Sodor Steamworks. Paxton works at Blue Mountain Quarry and was once involved in an accident there when Blondin Bridge collapsed. He was then sent to the Sodor Dieselworks for repairs.
Upon his return to work at the quarry, Paxton overheard Luke telling Thomas about how the little green engine knocked a yellow engine into the sea. Paxton told Diesel about what he had heard. Diesel decided that Luke should be punished and set out with Paxton to expose Luke. However, Paxton felt bad and helped Thomas and Luke out by bringing Victorto talk to Luke and the Fat Controller.
Paxton almost got into a collison with Winston when he was a runaway, but luckily he stopped just in time. Afterwards, he warned Gordon to be checked over after an accident with stone. When Gordon ignored his warnings and broke down, Paxton brought him to the Steamworks to be repaired.
After Sir Topham Hatt told Paxton among other engines to be careful near the bumpy track, Paxton then messed around on the damaged track with Thomas, causing Thomas to collide with Toby. After Toby says Thomas "Lost his puff" Paxton searches for the "Puff" and makes himself look silly in front of Stephen and Victor. He then learns that "Puff" means steam.
Paxton is a young, gentle diesel who often works in or around the Blue Mountain Quarry and the Vicarstown Dieselworks. He is good-hearted and well meaning, but gullible, naive, and easily misled. He also has a short attention span. He tends to be more of a follower than a leader and can sometimes find thinking for himself and making big decisions difficult. This may result in him being pressured into a situation he might not necessarily be comfortable with. However, if a friend is in trouble, Paxton will have the conscience and the self-assertion to do what he himself feels is right. As a result, the other steam engines find that he is likable and Paxton particularly looks up to Thomas at times. He also works alongside the narrow gauge engines frequently. However, Paxton can easily misjudge situations, misplace his trust in someone who might not have everyone's best interests at heart, and is a rather impressionable diesel, but his good nature will ultimately show him for who really wants to be.
Paxton is painted dark green with yellow lining. He has red traction rods. His paint is chipped in places, and shows signs of weathering.
- Steven Kynman (UK/US; Blue Mountain Mystery onwards)
- Martin Brücker (Germany)
- Nozomu Sasaki (Japan)
- Dariusz Błażejewski (Poland)
- Scott Maurstad (Norway; Blue Mountain Mystery onwards)