Reparto

• Hugh Grant — The Prime Minister
• Colin Firth — Jamie
• Bill Nighy — Billy Mack
• Alan Rickman — Harry
• Emma Thompson — Karen
• Liam Neeson — Daniel
• Laura Linney — Sarah
• Keira Knightley — Juliet
• Martine McCutcheon — Natalie
• Heike Makatsch — Mia
• Thomas Brodie-Sangster — Sam
• Lúcia Moniz — Aurelia
• Kris Marshall — Colin Frissell
• Martin Freeman — John
• Billy Bob Thornton — The US President
• Rowan Atkinson — Rufus, a jewellery salesman
• Andrew Lincoln — Mark
• Gregor Fisher — Joe
• Joanna Page — Just Judy
• Chiwetel Ejiofor — Peter
• Rodrigo Santoro — Karl
• Nina Sosanya — Annie
• Rory MacGregor — Engineer
• Sienna Guillory — Jamie's Girlfriend
• Frank Moorey — Terence - Who's in Charge
• Dan Fredenburgh — Jamie's Bad Brother
• Edward Hardwicke — Sam's Grandfather
• January Jones — Jeannie - American Angel
• Elisha Cuthbert — Carol-Anne
• Sheila Allen — Jamie's mum
• Adam Godley — Mr. Trench
• Olivia Olson — Joanna Anderson
• Laura Rees — Record Company Executive
• Nancy Sorrell — Greta
• Carla Vasconcelos — Sophia Barros
• Joanna Bacon — Natalie's Mum
• Bill Moody — Natalie's Dad
• Jo Whiley — Radio DJ
• Richard Hawley — Alex - Deputy Prime Minister
• Julia Davis — Nancy the Caterer
• Caroline John — Sam's Grandmother
• Claudia Schiffer — Carol
• Shannon Elizabeth — Harriet - the Sexy One
• Denise Richards — Carla - the Real Friendly One
• Declan Donnelly — Dec
• Anthony McPartlin — Ant
• Elisabeth Margoni — Eleonore