Bash & Dash, are twin logging Loco Tank engines, who have the tendency to finish one another's sentences. They were sent to Misty Island along with Ferdinand, for not being very useful when they were working on the Mainland, & because the engines had no rules to abide by or follow on misty Island, they live freely for fun & play. Little work was done up until Thomas became stranded on the island, & taught the twins that being really useful can be really fun too. Now, they all work very hard with Ferdinand to try & please Sir Topham Hatt. Bash & Dash appear in the 2010 movie Misty Island Rescue.
- Dash & Bash's models are painted complete opposites of each other.