Bill and Ben are the cheeky yellow saddletank engine twins who work for the Sodor China Clay Company, though they can commonly be found at Brendam Docks. They formerly worked at Anopha Quarry. They enjoy playing tricks and being cheeky to other engines.
They played two other Teensies in Thomas (Rayman) (Julian Bernardino's Style)
- They are two other Teensies