Thomas' Trusty Wheels is a book in the Engine Adventures series.
Spencer has to take the Duke and Duchess to Lord Callan’s birthday ball, but Thomas and his friends think there are quicker ways to travel! How many wheels will deliver the Duke and Duchess to Callan Castle?
- Sir Topham Hatt
- Mr. Percival
- The Duke of Boxford
- The Duchess of Boxford (does not speak)
- Annie and Clarabel (cameo)
- Rocky (mentioned)
- Lord Callan (mentioned)