Toad worked with Oliver on the Great Western Railway before being threatened with the prospect of scrapping. Oliver and Toad ran away for the greener pastures of the North Western Railway, but Oliver ran out of coal en route. Luckily, they were rescued by Douglas and brought back to Sodor. In the Railway Series, Toad asked to be Douglas' brakevan as a show of thanks. In the television series, Toad is Oliver's brakevan rather than Douglas'.
- Toad is best friends with Little Strongheart.
- Toad is also Clarabel's Boyfriend.
- Toad is Bon Bon's Boyfriend.in Mustang Fan's series