Mark Moraghan

as Narrator (voice)

Joseph May

as Thomas (voice)

Olivia Colman

as Marion (voice)

William Hope

as Toby (voice)

Miranda Raison

as Millie (voice)

Togo Igawa

as Hiro (voice)

Tracy-Ann Oberman

as Daisy (voice)

Maggie Ollerenshaw

as Henrietta (voice)

Mike Grady

as Sir Robert Norramby (voice)

Joe Mills

as Douglas (voice)

Bob Golding

as Stephen (voice)

Christopher Ragland

as Percy (voice)

Kerry Shale

as Gordon / Diesel / Harold (voice)

Keith Wickham

as Glynn / Sir Topham Hatt (voice)

Teresa Gallagher

as Annie / Clarabel / Passenger (voice)

Rob Rackstraw

as James / Donald / The Bird Watcher / Douglas' Driver (voice)