Sarah Snook

Grace (voice)

Kodi Smit-McPhee

Gilbert (voice)

Jacki Weaver

Pinky (voice)

Magda Szubanski

Ruth Appleby (voice)

Dominique Pinon

Percy Pudel (voice)

Tony Armstrong

Ken (voice)

Paul Capsis

Ian / Narelle (voice)

Eric Bana

James the Magistrate (voice)

Davey Thompson

Ben Appleby (voice)

Nick Cave

Bill Clarke (voice)

Adam Elliot

Denise Floyd (voice)

Luke Elliot

Headmaster / Security Guard (voice)

Jub Clerc

Nursing Home Resident Mavis / Sperm Nurse (voice)

Flynn Wandin

Additional Kids Voices (voice)

Andy Wright

Additional Adult Voices (voice)