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)