- Michael Angelis
- Narrator (UK)
- Michael Brandon
- Narrator (US) / Diesel (US) (voice)
- Ben Forster
- Mr. Perkins
- David Bedella
- Victor (US) / The Mayor of Sodor (US) (voice)
- Jules de Jongh
- Emily (US) / Mavis (US) / The Duchess of Boxford (US) (voice)
- Teresa Gallagher
- Emily (UK) / Mavis (UK) / The Duchess of Boxford (UK) (voice)
- William Hope
- Edward (US) / Whiff (US) / Rocky (US) / Farmer McColl (US) (voice)
- Steven Kynman
- Peter Sam
- Kerry Shale
- Gordon (US) / James (US) / Diesel (UK) / Sir Topham Hatt (US) / Mr. Percival (US) / The Photographer (US) (voice)
- Martin T. Sherman
- Thomas (US) / Percy (US) (voice) (as Martin Sherman)
- Ben Small
- Thomas (UK) / Rheneas (UK & US) (voice)
- Keith Wickham
- Edward (UK) / Gordon (UK) / James (UK) / Percy (UK) / Whiff (UK) / Den (UK & US) / Skarloey (UK & US) / Sir Handel (UK & US) / The Fat Controller (UK) / Mr. Percival (UK) / The Mayor of Sodor (UK) (voice)
- Matt Wilkinson
- Spencer (UK) / Victor (UK) / Rocky (UK) / Farmer McColl (UK) / The Photographer (UK) (voice)
- Glenn Wrage
- Spencer (US)
