Hugh Grant The Prime Minister Alan Rickman Harry Emma Thompson Karen Liam Neeson Daniel Martine McCutcheon Natalie Colin Firth Jamie Bennett Bill Nighy Billy Mack Laura Linney Sarah Lúcia Moniz Aurelia Andrew Lincoln Mark Keira Knightley Juliet Chiwetel Ejiofor Peter Gregor Fisher Joe Martin Freeman John Joanna Page Just Judy Heike Makatsch Mia Thomas Brodie-Sangster Sam Kris Marshall Colin Frissell Rodrigo Santoro Karl Abdul Salis Tony Rowan Atkinson Rufus, Jewellery Salesman Rory MacGregor Engineer Sienna Guillory Jamie's Girlfriend Billy Bob Thornton The US President Lulu Popplewell Daisy, Karen's Daughter Olivia Olson Joanna Anderson Nina Sosanya Annie Frank Moorey Terence, Who's in Charge Jill Raymond Pat the Housekeeper Julia Davis Nancy the Caterer Brian Bovell Radio Watford DJ John Sharian Wisconsin Taxi Driver January Jones Jeannie, American Angel Sheila Allen Jamie's Mum Margery Mason Harris Street Old Lady Denise Richards Carla, the Real Friendly One Frances de la Tour Lesbian Lover (uncredited) Anne Reid Headmistress (uncredited) Hugh Grant The Prime Minister Alan Rickman Harry Emma Thompson Karen Liam Neeson Daniel Martine McCutcheon Natalie Colin Firth Jamie Bennett Bill Nighy Billy Mack Laura Linney Sarah Lúcia Moniz Aurelia Andrew Lincoln Mark Keira Knightley Juliet Chiwetel Ejiofor Peter Gregor Fisher Joe Martin Freeman John Joanna Page Just Judy Heike Makatsch Mia Thomas Brodie-Sangster Sam Kris Marshall Colin Frissell Rodrigo Santoro Karl Abdul Salis Tony Rowan Atkinson Rufus, Jewellery Salesman Rory MacGregor Engineer Sienna Guillory Jamie's Girlfriend Billy Bob Thornton The US President Lulu Popplewell Daisy, Karen's Daughter Olivia Olson Joanna Anderson Nina Sosanya Annie Frank Moorey Terence, Who's in Charge Jill Raymond Pat the Housekeeper Tim Hatwell Vicar Lynden David Hall The Wedding Singer Jont Whittington Guitarist Dan Fredenburgh Jamie's Bad Brother Julia Davis Nancy the Caterer Shaughan Seymour Movie Cameraman Edward Hardwicke Sam's Grandfather Caroline John Sam's Grandmother Brian Bovell Radio Watford DJ Marcus Brigstocke Mikey, DJ Interviewer Richard Hawley Alex, Deputy Prime Minister Anthony McPartlin Ant Declan Donnelly Dec Elisabeth Margoni Eleonore Peter Marinker US Expert Keir Charles Press Conference Reporter Jo Whiley Radio DJ John Sharian Wisconsin Taxi Driver January Jones Jeannie, American Angel Sheila Allen Jamie's Mum Margery Mason Harris Street Old Lady Denise Richards Carla, the Real Friendly One Frances de la Tour Lesbian Lover (uncredited) Anne Reid Headmistress (uncredited)