Mark Moraghan
Narrator / Bob (voice)

Ben Small
Thomas / The Troublesome Trucks (voice)

Clive Mantle
Gator (voice)

Olivia Colman
Marion (voice)

Mike Grady
Sir Robert Norramby (voice)

Keith Wickham
Edward / Henry / Gordon / James / Percy / The Fat Controller / Workmen (voice)

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

Jonathan Broadbent
Bill / Ben (voice)

Steven Kynman
Porter / The Dock Manager (voice)

Tim Whitnall
Timothy / Reg (voice)

Matt Wilkinson
Kevin / Cranky (voice)

Bob Golding
Workmen (voice)