Hugh Grant

The Prime Minister

Olivia Olson

Joanna

Colin Firth

Jamie

Laura Linney

Sarah (US version)

Bill Nighy

Billy Mack

Andrew Lincoln

Mark

Keira Knightley

Juliet

Liam Neeson

Daniel

Rowan Atkinson

Rufus

Chiwetel Ejiofor

Peter

Martine McCutcheon

Natalie

Lúcia Moniz

Aurelia

Thomas Brodie-Sangster

Sam

Marcus Brigstocke

Mikey the DJ

Robert Peston

Himself

Kate Moss

Herself

Patrick Dempsey

(US version)