Proof

Hugo Weaving

Martin

Russell Crowe

Andy

Geneviève Picot

Celia

Heather Mitchell

Martin's Mother

Jeffrey Walker

Young Martin

Daniel Pollock

Punk

Frankie J. Holden

Brian

Frank Gallacher

Vet

Saskia Post

Waitress

Belinda Davey

Doctor

Jocelyn Moorhouse

Director

Lynda House

Producer