Fizzling fireboxes...there's mayhem on the mainline and it's up to Thomas and his friends to race to the rescue! Flynn finds out you can never have too many fire engines, as Bill and Ben play tricks on speedy Connor. James' spooky story has Stephen and Percy rattling their rails, while Thomas has a hard time believing Charlie's jumbo tale. Bad coal won't keep Henry and Hiro from puffing along to save the day. Full steam ahead for fun with these engine heroes!
| Actor | Role |
|---|---|
 Mark MoraghanNarrator (voice) | Narrator (voice) |
 Martin ShermanThomas / Percy (voice) | Thomas / Percy (voice) |
 Teresa GallagherBelle / Annie / Clarabel / Children (voice) | Belle / Annie / Clarabel / Children (voice) |
| BBob GoldingStephen (voice) | Stephen (voice) |
 Ben SmallFlynn / Charlie (voice) | Flynn / Charlie (voice) |
 William HopeRocky / Railway Inspector (voice) | Rocky / Railway Inspector (voice) |
 Steven KynmanButch / Railway Inspector / Duck (voice) | Butch / Railway Inspector / Duck (voice) |
 Kerry ShaleSir Topham Hatt / James / Henry / Kevin / Gordon / Harold / Headkeeper Jack (voice) | Sir Topham Hatt / James / Henry / Kevin / Gordon / Harold / Headkeeper Jack (voice) |
| JJonathan BroadbentBill / Ben (voice) | Bill / Ben (voice) |
 Jonathan ForbesConnor (voice) | Connor (voice) |
 David BedellaVictor (voice) | Victor (voice) |
 Togo IgawaHiro (voice) | Hiro (voice) |
 Keith WickhamRailway Inspector / Salty (voice) | Railway Inspector / Salty (voice) |
 Glenn WrageCranky (voice) | Cranky (voice) |
 Ben ForsterMr. Perkins | Mr. Perkins |