My Son

James McAvoy

Edmond Murray

Claire Foy

Joan Richmond

Tom Cullen

Frank

Gary Lewis

Inspector Roy

Michael Moreland

William O'Connor

Robert Jack

Alan

Owen Whitelaw

Fergus

Paul Rattray

Steven

Toni Frutin

Leah (voice)

Rosalind Sydney

Camp Manager

Paul Stirrat

Junior Police Officer

Andrew John Tait

Roadblock Cop

Max Wilson

Ethan Murray