*Lady is a small, violet and gold Victorian-styled tank engine.

Lady is a kind, wise engine who is respectful to others. She tries her best to help others either directly or through dispensing sage advice. She appears to be friends with Thomas.

In Thomas and the Magic Railroad, Lady is a very special engine who holds the secret to the Magic Railroad. When she moves along the rails, she spreads Gold Dust with her special powers. She has been known to help Thomas and his friends, when there is no one else to turn to.

Lady is a freelance design, created by the designers on Thomas and the Magic Railroad.

One of Lady's concept art images depicts her as a 2-2-2 resembling Gazelle, a Dodman & Co. 0-4-2WT locomotive from the Shropshire & Montgomeryshire Railway.

David Eves originally intended Lady to be based on the GWR 3031 Class. However, Britt Allcroft wanted her to be a small engine. Coincidentally, the Hornby Emily was manufactured using a repainted GWR 3031 Class. All members of this class were scrapped with no preserved examples, with a non-functional replica of No. 3041 The Queen eventually being constructed for the Windsor and Eton Central railway station.

Lady is painted in a red violet colour with gold headlamps on her front footplate, tail lamp, gold buffers, smokebox, funnel top, dome, whistle, side rods, lining and her name on each side in gold. She is also painted a very dark purple on her cab roof, lower funnel section and her footplate.*