Ms. Valdez (full name is Alexis Valdez but has never been revealed) is a friendly lady who resides in Vicarstown Village near the Coal Mines, and is good friends with Dodger and his crew.
As of now, not much is known about her past, but it is assumed she is probably from the 60s or 70s. She was first seen in the sixteenth season, and revealed to usually make lunch for Dodger's crew. She often makes cakes, cookies, and other treats for McBunn, Dodger's crew and the Fat Controller.
- Season 16 - Dodger and the Avalanche, New Challenges, Thomas and the Great Railway Show Part 1 (non-speaking role) and Faithful Coaches (mentioned).
- Season 17 - The Three Little Engines Part 3 and Wildfire
She is a friendly lady who cares deeply for the railway, and usually keeps an eye on the Mines from her house. She also usually makes lunch for Dodger's crew and is a great baker too, usually providing McBunn with plenty of cakes, cookies, and other goods.