Mark Moraghan
Narrator (voice)

Martin Sherman
Thomas / Percy / Diesel (voice)

David Bedella
Victor (voice)

Jonathan Forbes
Connor (voice)

Teresa Gallagher
Emily / Belle / Annie and Clarabel (voice)

Bob Golding
Stephen (voice)

Mike Grady
Sir Robert Norramby (voice)

William Hope
Edward / Toby (voice)

Togo Igawa
Hiro (voice)

Jules de Jongh
Emily (voice)

Steven Kynman
Paxton / Jack (voice)

Michael Legge
Luke (voice)

Rebecca O'Mara
Caitlin (voice)

Miranda Raison
Millie (voice)

Kerry Shale
Henry / Gordon / James / Diesel / Sir Topham Hatt (voice)

Ben Small
Thomas / Toby / Rheneas / Troublesome Trucks (voice)

Keith Wickham
Edward / Henry / Gordon / Skarloey / The Fat Controller (voice)

Matt Wilkinson
Spencer / Cranky / Kevin (voice)

Glenn Wrage
Spencer / Cranky (voice)

David Menkin
Jack (voice) (uncredited)