Thomas is the number 1 blue tank engine.
Thomas is based on a LB&SCR E2 class.
Thomas is painted blue with red lining.
- Emily to the Rescue (cameo)
- Saving Benjamin
- Back In Service
- Dockyard Tales (mentioned, seen in flashback)
- Homesick (does not speak)
- Toby and the Subway Car
- Earls and Passengers (mentioned)
- Gordon and the Railway Choice Awards
- No Hamburgers for Duck
- Paxton and the New Diesel (does not speak)
- A Dirty Day for Daniel
- Marion Makes a Move (does not speak)
- Brady and the Famous Visitor (does not speak)
- The Search for the Controllers Part 1
- The Search for the Controllers Part 2
- The Search for the Controllers Part 3
- Calling All Engines Again!