 Mark MoraghanNarrator (voice) | Narrator (voice) |
 Joseph MayThomas (voice) | Thomas (voice) |
 Steven KynmanDuck / Birdwatcher / Paxton / Butch (voice) | Duck / Birdwatcher / Paxton / Butch (voice) |
| JJoe MillsOliver / Toad / Workman (voice) | Oliver / Toad / Workman (voice) |
 Teresa GallagherBelle / Annie / Clarabel / Schoolchildren / Stephen Hatt / Bridget Hatt (voice) | Belle / Annie / Clarabel / Schoolchildren / Stephen Hatt / Bridget Hatt (voice) |
 Keith WickhamSalty / Sir Topham Hatt / Workman / Bertie / Dock Manager / Dock Workers / Stafford / Wellsworth Stationmaster (voice) | Salty / Sir Topham Hatt / Workman / Bertie / Dock Manager / Dock Workers / Stafford / Wellsworth Stationmaster (voice) |
 Kerry ShaleFlynn / Harold / Gordon / Man on Bridge / Henry / Diesel (voice) | Flynn / Harold / Gordon / Man on Bridge / Henry / Diesel (voice) |
 William HopeRocky / Edward / Toby (voice) | Rocky / Edward / Toby (voice) |
 Glenn WrageCranky / Spencer (voice) | Cranky / Spencer (voice) |
 Rob RackstrawJames / Stanley / Passengers (voice) | James / Stanley / Passengers (voice) |
| CChristopher RaglandPercy / Troublesome Trucks (voice) | Percy / Troublesome Trucks (voice) |
 David MenkinPorter (voice) | Porter (voice) |
 David BedellaVictor (voice) | Victor (voice) |
 Jules de JonghEmily (voice) | Emily (voice) |
 Rebecca O'MaraCaitlin (voice) | Caitlin (voice) |
 Maggie OllerenshawHenrietta (voice) | Henrietta (voice) |
 Tim WhitnallReg (voice) | Reg (voice) |
| BBob GoldingRailway Inspectors (voice) | Railway Inspectors (voice) |
| MMatt WilkinsonWinston (voice) | Winston (voice) |
 Ben ForsterMr. Perkins | Mr. Perkins |
