Bill and Ben

"There's no real harm in them, but they're maddening at times."

- Edward, "Main Line Engines", page 15

Bill and Ben are two tank engine twins that work for the Sodor Clay Company, near Brendam harbour. They like playing tricks.

They first appeared in the Railway Series book "Main Line Engines", getting revenge on Boco for "stealing" their trucks. It turned out to be a huge misunderstanding, and both apologised to Boco. They later appeared in the same book, teasing Gordon about scrapping him. Gordon didn't realise this, however, and probably hasn't to this day.

They also appeared in "Thomas and the Twins" when Thomas was transferred to Edward's branch line. They teased him about his colour, even more so when he collided with a dairy truck. They later made a pact to never tease him again after Thomas rescued Ben from the "Drain".

In the television series, they first appeared in the second season episode "The Diseasel". They have since become regular cast members.

According to Duck, Edward is the only engine who can keep them in order. Thomas probably has the same effect over them too, and possibly BoCo.

Basis
Both are based on the Bagnall 0-4-0STs, "Alfred" and "Judy", of Par, Cornwall.

Livery
In the Railway Series, Bill and Ben are painted dark orange with red lining and yellow writing. In the television serie,s they are painted orange with red and yellow lining.