Mark Moraghan as Narrator (voice)

John Hasler as Thomas (voice)

Darren Boyd as Theo (voice)

Sophie Colquhoun as Frankie (voice)

Hugh Bonneville as Merlin (voice)

Lucy Montgomery as Lexi / Troublesome Trucks (voice)

Jim Howick as Hurricane (voice)

Colin McFarlane as Beresford (voice)

Rasmus Hardiker as Philip (voice)

Keith Wickham as Edward / Henry / Gordon / Sir Topham Hatt / Workmen (voice)

Nicola Stapleton as Rosie (voice)

Teresa Gallagher as Emily / Annie and Clarabel (voice)

Rob Rackstraw as James / Toby / Troublesome Trucks (voice)

Christopher Ragland as Troublesome Trucks (voice)

Nigel Pilkington as Percy / Trevor (voice)

John Schwab as Ulli / Other Mainline Diesel (voice)

Steven Kynman as The Knapford Station Worker / Steelworks Worker (voice)

David Bedella as Victor (voice)

Kerry Shale as Troublesome Trucks (voice)

William Hope as Two Troublesome Truck (voice)