John Hasler

Thomas (voice)

Keith Wickham

Edward / Henry / Gordon / Bertie / Harold / Captain / The Fat Controller / Dowager Hatt / The Thin Controller (voice)

Rob Rackstraw

James / Toby / Donald / Sam / Big Mickey / The Thin Clergyman / African Race Announcer (voice)

Nigel Pilkington

Percy (voice)

Steven Kynman

Duck / Paxton (voice)

Teresa Gallagher

Emily / Marion / Daisy / Natalie / American Diesel / Annie / Clarabel / Cassia (voice)

Tim Whitnall

Bill / Timothy / Moai (voice)

Matt Wilkinson

Ben / Cranky / Tony / Carter (voice)

Rufus Jones

The Flying Scotsman (voice)

Nicola Stapleton

Rosie (voice)

Dan Li

Yong Bao (voice)

Eliud Gabriel Porras

Carlos / Fernando / Emerson / Brazilian Troublesome Trucks / Various (voice)

Yvonne Grundy

Nia (voice)

Patricia Kihoro

Nia (singing voice)

Kerry Shale

Beau / Diesel (voice)

Bob Golding

Sidney (voice)

Rasmus Hardiker

Bill / Philip (voice)

Su Lin Looi

Chinese Diesel (voice)

Lucy Montgomery

Carly / Cowgirls (voice)

Rachael Louise Miller

Angelique (voice)

Abubakar Salim

Kwaku / African Van / Kobe / Various (voice)

Richie Campbell

African Van / Various (voice)

Akiya Henry

African Tankers / Various (voice)

Chipo Chung

African Van / Various (voice)

Linda Adwera

Various (voice)

Peter Andre

Ace (voice)

David Menkin

Racing Car / Cowboys (voice)

Christopher Ragland

Racing Car / Cowboys (voice)

Joe Mills

Douglas / Oliver (voice) (uncredited)