Hugh Grant

The Prime Minister

Liam Neeson

Daniel

Colin Firth

Jamie

Laura Linney

Sarah (US version)

Andrew Lincoln

Mark

Chiwetel Ejiofor

Peter

Keira Knightley

Juliet

Martine McCutcheon

Natalie

Bill Nighy

Billy Mack

Rowan Atkinson

Rufus

Olivia Olson

Joanna

Lúcia Moniz

Aurelia

Thomas Brodie-Sangster

Sam

Marcus Brigstocke

Mikey the DJ

Robert Peston

Himself

Kate Moss

Herself

Patrick Dempsey

(US version)