Molly Parker as Mel

Harry Eden as Paul

Keira Knightley as Louise

Vinnie Hunter as Lee

David Wenham as Lenny

Nitin Ganatra as Abu

Levi Hayes as Jack

Rupert Procter as Harry

Bronson Webb as Tom

Marsha Thomason as Vicki

Geraldine McEwan as Nanna

Karl Johnson as Granddad

Gary Lewis as DI French

Tyler J. Smart as Rose

Kate Ashfield as Helen

Julia Deakin as Mrs Rawlings

Mona Hammond as Customer

Mia Soteriou as Diane

Robert Hands as Doctor

Jessica Hynes as Paramedic (as Jessica Stevenson)

Russell Barr as Nurse

Tamsin Greig as Liaison Officer

Bea Guard as Waitress

Alan Turkington as Secretary

Kathryn Pogson as Woman at Door