Thomas (voice)

Edward / Gordon / Salty / The Fat Controller / Harvey / Henry / Whiff / Skarloey / Various (voice)

James / Passengers (voice)

Percy (voice)

Emily / Belle / Annie / Clarabel / Stephen Hatt / Bridget Hatt / Passengers / Madeleine's Mother (voice)

Flying Scotsman (voice)

Porter / Duck / Paxton / Dart (voice)

Nia / Children (voice)

Rebecca / Isla / Teacher / Passengers / Madeleine (voice)

Diesel (voice)

Philip / Bill / Angry Man (voice)

Ben / Kevin / Passengers (voice)

Marion (voice)

Daisy (voice)

Victor (voice)

Yong Bao (voice)

Hong-Mei (voice)

An-An (voice)

Yin-Long / Chinese Guard / Lei (voice)

Ashima (voice)

Rajiv (voice)

Shankar (voice)

Noor Jehan (voice)

Shane (voice)

Aubrey (voice)

Aiden / Madeleine's Father (voice)

Sidney (voice)

Reg (voice)

Passenger (voice) (uncredited)