Logan is a strong, shunting steam engine who looks like a diesel exclusive to the Sodor Story Collection. He is included with the Logan and the Big Blue Engines Set and the Logan and the Big Blue Engines Book Pack.
- Logan (Logan and the Big Blue Engines Book Pack)
- Dirty Logan (Logan and the Big Blue Engines Set)
- Logan is the only Sodor Story Collection character to have a different variant in his book pack than in his set.
- Logan's blue paint is significantly darker on his promotional CGI render and Wooden Railway model than it is in his book's illustrations.