Cast-in order of appearance:
Chantal Strand-Diamond Tiara
Brynna Drummond-Babs Seed
Madeleine Peters-Scootaloo
Claire Corlett-Sweetie Belle
Nicole Oliver-Cheerilee
Graham Verchere-Pipsqueak and the trucks
Vincent Tong-Rumble
Richard Ian Cox-Featherweight
Matthew Francis-the Station Master
Tabitha St. Germain-The Refreshment Lady
Lee Tocker-Unknown diesel
Mark Acheson-Tirek
Sanguine-Himself
Frank Welker-Cockatrix and Bugbear
Sunni Westbrook-Cozy Glow

Author's Note

The final group of new engines introduced this story:

Sanguine

Cockatrix and Bugbear

Dinky

Well, that concludes this first series of narrow gauge stories! I'm taking a break from this to focus on other projects, but I will be coming back to this, as well as writing some standard gauge stories.
Have fun, and keep steaming everypony!