Logan is a shunter who resembles a diesel.
- Season 13: Who Stole The Coal?, Sam I Am, Toad Gets Towed (cameo), Hector and Logan's Hot Pursuit and How Gator Stole Christmas
- Season 14: Millie's Castle Hassle, Double-Decker-Wrecker, Cabless Companions (cameo),
- Season 15: Roundhouse Roulette (does not speak)
He also appeared in a review along with Sam.