 Mark MoraghanNarrator (voice) | Narrator (voice) |
| JJohn HaslerThomas / Rheneas (voice) | Thomas / Rheneas (voice) |
 Keith WickhamEdward / Henry / Gordon / James / Salty / Den / Norman / Skarloey / Sir Handel / The Fat Controller / Various (voice) | Edward / Henry / Gordon / James / Salty / Den / Norman / Skarloey / Sir Handel / The Fat Controller / Various (voice) |
 Nigel PilkingtonPercy (voice) | Percy (voice) |
 Steven KynmanDuck / Charlie / Porter / Dart / Paxton / Peter Sam (voice) | Duck / Charlie / Porter / Dart / Paxton / Peter Sam (voice) |
| JJoe MillsDonald / Douglas / Oliver (voice) | Donald / Douglas / Oliver (voice) |
 Teresa GallagherEmily / Belle / Frieda / Gina / Daisy / Marion / Annie / Clarabel (voice) | Emily / Belle / Frieda / Gina / Daisy / Marion / Annie / Clarabel (voice) |
 Rufus JonesThe Flying Scotsman (voice) | The Flying Scotsman (voice) |
| MMatt WilkinsonSpencer / Stanley / Kevin / Cranky / Dock Manager (voice) | Spencer / Stanley / Kevin / Cranky / Dock Manager (voice) |
 Kerry ShaleScruff / Diesel (voice) | Scruff / Diesel (voice) |
| BBob GoldingStephen / Sidney (voice) | Stephen / Sidney (voice) |
 Jonathan ForbesConnor (voice) | Connor (voice) |
 Rebecca O'MaraCaitlin (voice) | Caitlin (voice) |
 Tim WhitnallTimothy / Mike (voice) | Timothy / Mike (voice) |
 Robert WilfortSamson / Great Railway Show Judge (voice) | Samson / Great Railway Show Judge (voice) |
 Tina DesaiAshima (voice) | Ashima (voice) |
 Rob RackstrawAxel / Raul / Carlos / Ivan / Etienne / Flynn / Great Railway Show Announcer (voice) | Axel / Raul / Carlos / Ivan / Etienne / Flynn / Great Railway Show Announcer (voice) |
 John SchwabVinnie (voice) | Vinnie (voice) |
 Rasmus HardikerPhilip (voice) | Philip (voice) |
 David BedellaVictor / Carlos (voice) | Victor / Carlos (voice) |
| JJonathan BroadbentBill / Ben (voice) (uncredited) | Bill / Ben (voice) (uncredited) |
 Jules de JonghEmily (singing voice) (uncredited) | Emily (singing voice) (uncredited) |
| CChristopher RaglandPercy (singing voice) (uncredited) | Percy (singing voice) (uncredited) |
 Tom StourtonRex (voice) (uncredited) | Rex (voice) (uncredited) |
