Toni Collette

as Mary (voice)

Philip Seymour Hoffman

as Max (voice)

Barry Humphries

as Narrator (voice)

Eric Bana

as Damien (voice)

Bethany Whitmore

as Young Mary (voice)

Renée Geyer

as Vera Lorraine Dinkle (voice)

Ian 'Molly' Meldrum

as Homeless Man (voice)

John Flaus

as Harvey Krumpet / Ken / Len Hislop (voice)