Tracy is a small shunting engine owned by the Dream Fleet Rail Co.

Tracy is both the youngest and smallest engine of both the True Blue Steam Team and The Dream Fleet (originally located on the mainland). Much like her friend Tillie, she's a determined little engine, but because she's still rather young and has much to learn, when trying to tackle larger jobs, which the bigger engines occasionally take full advantage of. However, she makes up for it for her dedication, hard work, determination, and cheerful enthusiasm. Every now and then, she's often seen traveling up and down the Foxton Valley Branch Line (that runs from Foxton Valley Junction to Grdnic) either taking small supply trains or delivering the mail.

Her original voice source is Alyson Stoner.