Bill is a cheeky yellow tank engine. Ben is his twin.
- Plarail/Motor Road and Rail/TrackMaster by HiT Toy Company model (2002 - Japan; 2006-2009 - UK/US)
- TrackMaster by Fisher-Price model (updated body) (2010-2013)
- Bill with Coal Troublesome Trucks (Motor Road and Rail)
- Bill with two half straight track pieces (Motor Road and Rail [US])
- Bill with half straight track piece (TrackMaster [HiT Toy Company])
- Bill with Red Bolster Wagon and Slate Truck (TrackMaster [HiT Toy Company])
- Bill with Orange Truck (TrackMaster [HiT Toy Company])
- Bill with Slate Truck (TrackMaster [Fisher-Price])
- Bill (TrackMaster [Fisher-Price])
- Bill and Ben Harbour Friends Set (Plarail)
- Bill was released five years after Ben in Motor Road and Rail, possibly because it was thought that the two packs would be exactly the same.