Mark Moraghan
Narrator (voice)
John Hasler
Thomas / Rheneas (voice)
Keith Wickham
Edward / Henry / Gordon / James / Salty / Den / Norman / Skarloey / Sir Handel / The Fat Controller / Various (voice)
Nigel Pilkington
Percy (voice)
Steven Kynman
Duck / Charlie / Porter / Dart / Paxton / Peter Sam (voice)
Joe Mills
Donald / Douglas / Oliver (voice)
Teresa Gallagher
Emily / Belle / Frieda / Gina / Daisy / Marion / Annie / Clarabel (voice)
Rufus Jones
The Flying Scotsman (voice)
Matt Wilkinson
Spencer / Stanley / Kevin / Cranky / Dock Manager (voice)
Kerry Shale
Scruff / Diesel (voice)
Bob Golding
Stephen / Sidney (voice)
Jonathan Forbes
Connor (voice)
Rebecca O'Mara
Caitlin (voice)
Tim Whitnall
Timothy / Mike (voice)
Robert Wilfort
Samson / Great Railway Show Judge (voice)
Tina Desai
Ashima (voice)
Rob Rackstraw
Axel / Raul / Carlos / Ivan / Etienne / Flynn / Great Railway Show Announcer (voice)
John Schwab
Vinnie (voice)
Rasmus Hardiker
Philip (voice)
David Bedella
Victor / Carlos (voice)
Jonathan Broadbent
Bill / Ben (voice) (uncredited)
Jules de Jongh
Emily (singing voice) (uncredited)
Christopher Ragland
Percy (singing voice) (uncredited)
Tom Stourton
Rex (voice) (uncredited)