- Michael Brandon
- Narrator / Diesel (voice)
- David Bedella
- Victor
- Jules de Jongh
- Rosie / Alicia Botti / Schoolchildren (voice)
- Ben Forster
- Mr. Perkins
- William Hope
- Toby / Charlie / Dash (voice)
- Togo Igawa
- Hiro
- Kerry Shale
- Gordon / Henry / James / Bash / Kevin / Sir Topham Hatt (voice)
- Martin T. Sherman
- Thomas / Percy (voice) (as Martin Sherman)
- Keith Wickham
- Salty / Captain (voice)
- Glenn Wrage
- Rocky / Ferdinand (voice)
