Thomas the Tank Engine[]
- Gender: Male
- Color: Blue
- Occupation: Branch Line Engine
- First Appearance: Thomas and Gordon
- Performer: Ben Small (UK) Martin Sherman (US)
Thomas is a tank engine. He is engine #1. Thomas lives on the island of Sodor. He has a branch line and two passenger coaches named Annie and Clarabel. Thomas is cheeky and fussy. He is best friends with Percy.