Flatbed (Wooden)

These carry cargo.

They usually aren't as troublesome as the Troublesome Trucks.

Whiff (Wooden)

He works at the garbage dump.

He wears glasses. He probably smells bad and that's why they call him Whiff.

Hiro (Wooden)

Hiro is a really old engine.

He was lost for a long time until Thomas found him and helped repair him. Spencer tried to get Sir Topham Hatt to scrap Hiro.