The drivers, often called engineers in recent US narrations, drive and maintain the engines and, along with the fireman, keep the engines in control and provide a voice of reason when an engine is being difficult.
A driver's uniform consists of blue trousers, a black tie, a white shirt with a blue jacket over it, and a blue cap.
To become a driver, one would start as a cleaner before progressing to passed cleaner, then going onto trainee fireman, then fireman, next passed fireman, and finally driver.
- In newer episodes of Thomas and Friends drivers and firemen act almost purely as background characters and are very rarely acknowledged. The last time a driver had a speaking role was in the Season 10 episode It's Good to be Gordon.
- To date, seven drivers have been named: Charlie Sand, Edward's driver, Ted, Henry's driver, Bob, Thomas' driver in the CGI series, Mr. Arkwright, Mr. Perkins, Mr. Bennett and Mr. Roberts.