|Bill & Ben|
|Occupation: Quarry engines|
|First Appearance: Main Line Engines|
|Performer: Jonathan Broadbent (UK/US; both Bill and Ben)|
Bill and Ben are tank engine twins, who work at the Sodor China Clay Company.
Ben and Bill are identical twins in every way. Bill wears a huge devious grin most of the day. Ben enjoys being mischievous and teasing the other engines.