The Ballast Spreader is an unusual-looking machine who replaces ballast on the North Western Railway. Unusually, it is seen wearing glasses.
In the Wooden Railway range, the Ballast Spreader is known as the "Sodor Railway Repair". However, this title is technically inaccurate, as it belongs to the North Western Railway and is not strictly used for repair.
The Ballast Spreader is painted yellow and carries the words "SODOR CHAIN LOAD UNDERCUT" on its side.
The Ballast Spreader's specific basis is unknown, however it is based on a Ballast regulator, a piece of rail transport maintenance of way equipment used to shape and distribute the gravel track ballast. They are often used in conjunction with ballast tampers when maintaining track.
- It was the only character in the Railway Series to wear glasses.
- In the Railway Series, it was depicted with a black face, but its Wooden Railway toy is depicted with the traditional grey face to match the other characters.
- Wooden Railway (as "Sodor Railway Repair"; discontinued)