Jordyn is a yellow tender engine who works on Edward's Branch Line.
In Jordyn's first appearance, Rose told tales about her to the Troublesome Trucks . However, as Rose told the trucks she had heard the tales from Jackie, the Trucks told Jordyn it was Jackie that told the tales. This caused Jordyn to be mad at Jackie and she, along with Murdoch and Ralph stood outside Knapford Sheds not letting her in.
Marie has been shown to be ungrateful for Jordyn's help with getting up Gordon's Hill, not even saying so much as a "thank you" for her efforts. When Jordyn complained about this to Madison, she came up with a plan. She challenged Marie to a race across the island, to which Marie gave her a ten-minute headstart to give her more of a chance. However, Madison pulled onto the same track as Marie, forcing the bigger engine to go slowly. At Gordon's Hill, they were going so slowly that Marie became stuck, forcing Marie to swallow her pride and beg Jordyn to help her. Jordyn forgave Marie and gave her a push and this time, Marie gave her thanks as she descended down the other side.
Jordyn is a kindhearted engine, although she is also a bit hot tempered.
Jordyn is based on an LNER D34 "Glen" (NBR Reid Class K) 4-4-0 and an LNER D20 from the London and North Eastern Railway.
Visible modifications are: making the rear splashers flush with the cab, removal of the coupling rod splashers, new cab windows as opposed to cutaways in her cab side sheets and square cab lookouts as opposed to the original round ones. Jordyn is also depicted with a Fowler tender. Edward, Ametrine, Fei-Long, and the brown tender engines are also based on this design.
Jordyn is painted yellow with dark green lining. She has yellow wheels with green piston rods. She has her number on her tender sides in green. She originally had a red bufferbeam and footplate. However, her later designs feature her with a green bufferbeam and footplate.