Reparto (por orden de créditos)
John Voce
Thomas(voice)
Martin Parsons
Percy
Edward Nudd
James(voice)
Mark Roper
Gordon(voice)
Justin Fletcher
Harold(voice)
Dave McEvoy
Jack(voice)
Percy Copley
Sir Topham Hatt
Connor McAllister
Andrew Venning
Thomas' Driver
Adam Lacey
Percy's Driver
Russ Fielding
Michelle Dubreuil
Villager
Suzanne Britten
Clare Beasley
Mrs. Martin
Kate Ashmead
Josh
Sarah Angel
Jenny
Sarah Pinkney
Railway Worker
Emma Quintin
Ray Burnside
Narrator(voice)
Keiko Toda
Kenji Utsumi
Chisato Nakajima
Percy(voice)
Katsuji Mori