Martin, Jules, and Glenn

Martin, Jules, and Glenn, nicknamed Slippies by Duck, are special bogie coaches that can be uncoupled without stopping.

Bio
Before Duck came to Sodor, he worked on the Great Western Railway. He use to pull Martin, Jules, and Glenn, who could be uncoupled without stopping. That way, he wouldn't have any delays. Years later, it was a busy summer on Sodor, and Sir Topham Hatt was worried about getting the passengers to their stations on time. Duck thought about bringing slip coaches to help, but James took credit and told him this idea while Duck was asleep. The next day, the slip coaches arrived and, coincidentally, were the same slip coaches he use to pull. But he became upset when James got the credit and to pull the coaches.

When they arrived at Bluff's Cove, Glenn was uncoupled, but the big red engine slowed down too much so people to admire his paintwork, and they all bumped into each other. After that, the three slip coaches refused to move, which made all the passengers grumble. Soon, Sir Topham Hatt figured out that the slip coaches were Duck's idea and that he use to pull them. Nowadays, Duck pulls them up and down his Branch Line with Alice and Mirabel. At Christmas time, Connor borrowed Martin, Jules, and Glenn so he could bring more passengers from the Mainland to Sodor.

Voice Actors
Martin: Jules: Glenn:
 * Someone who sounds like Jonathon Broadbent.
 * Someone who sounds like Rebecca O'Mara.
 * Someone who sounds like Steven Kynman.