Life coach Ross Duttson kicks off the week hoping to impress with his minimum effort food. Second up is doll-maker and folk singer Elizabeth Lee, who promises a night 'with a touch of the obscure', in which she reveals her multiple personalities and debuts her latest character - tarot card reader 'Lady Christophene'. Nursery teacher Claire Baker hosts a night of glitz and glam. The final host is John Russell, who, having quizzed the other guests on their cooking and ingredients all week, has a lot to live up to if he's to bag the prize.

The four hosts are teaching assistant Clare Gaunt, salon owner Carly McGregor, long distance lorry driver Robinson Reid, who swears that burgers and chips are not the only food in his culinary repertoire, and caravan enthusiast Richard Hollingsworth, who just wants a calm, enjoyable night. Sadly, things get rather out of control at Richard's dinner party, and he is forced to take drastic action and ask one of the guests to leave.

In Chippenham, the first to host is part-time practical joker and full-time RAF engineer, Corporal Keith McEvoy. Even though Keith likes a prank or two, he finally meets his match in second contestant, gym owner Mark Lamputt, who has a few practical jokes of his own to unleash on his unsuspecting host. Meanwhile single-and-ready-to-mingle florist Fleur van Heijningen is on the prowl for a man and is hoping for a winning night as well as some romance. And someone who's never had a problem on the dating front is final competitor Finnish musician Terhi Ikonen who reveals some unconventional information about her love life. But that's not the only shock she has planned; the unsuspecting guests are subjected to a musical performance that leaves some guests unmoved.

Body builder Daniel Coleman takes on London snob Maggie Flowerdew, Norfolk local Richard Moore and outspoken Amber Woolmington. The week includes some catastrophically bad food, rising tensions and wind-ups and bust-ups a plenty.

Beautician Fay Khatri serves up an East African menu to start the week. Also taking part are Peter Watkins, who refers to himself as the 'Simon Cowell of the culinary world' and is not shy of speaking his mind. Then there's Kelsey Brown, who tries to encourage her guests to perfect their catwalk pouts. And party boy Dan Senior, who also likes to call himself the 'Bantersaurus Rex'.

Barber Terri Malone starts the week with a rock-themed menu. But will she be living on a prayer or on a highway to hell? Cocky company director Sean Tate serves an impressive but easy menu. Ex-dancer Josie Watson throws a glam night. And, last to host, Lee Clarke's charm offensive leaves Terri unimpressed.

The competitors in the Royal Borough of Kensington and Chelsea are posh estate agent Nick Le Ny-Clarke, outspoken Nana Eshun, eccentric Robbie Humphries and air hostess Louise Childs.

Yummy mummy Sharon Pickles starts the week by going back in time with a 70s-inspired menu. Local 'celeb' Adam Sankey puts his reputation on the line with his seafood. Artist Nadia Carney goes all out for presentation on her Moroccan evening. And estate agent Bill Le Grys takes on three demanding courses when it's his turn to host.

The uber-competitive Jane Dickinson takes on 'in-it-to-win-it' Mark Dempsey, wedding DJ Kev Riley and cable TV presenter Sally Jaxx, in a week of competitive dining featuring a bout of exuberant self-praise, a chicken newbie and a welcoming dog in a stripy jumper.

Competing for the cash prize are debt advisor Tom Franklin, posh landscape architect Richard Hodgetts, housing officer Emma Daisley and recruitment manager Sarah Dix, who is single and on the lookout for Mr Right - meaning the week features quite a bit of flirtatious fun. But when Richard asks if Tom's pea and mint soup is minty enough, he finds himself branded 'Pickie Dickie'. Nevertheless, everyone gives Emma's black pudding fritters the thumbs up.

American interior designer Carol Chalmers impresses her guests with her food and her presentation, and her night is made all the more memorable by doctor Anna Brocklebank, whose eccentric personality has the group in stitches of laughter. Competitive nail technician Michelle Catacos pulls out all the stops as she tries to better Carol's night with a Greek banquet. But a second consecutive night of good food leaves businessman Robin Lewis, the only man in the group, feeling the pressure. He tries to deflect attention from Michelle's night by asking the group what he needs to do to impress them, which doesn't go down well with Michelle, who refuses to give him any tips. On Robin's evening, Michelle questions every dish of his menu, with interesting results. Bon viveur Anna rounds off the week, regaling her guests with stories of the 'Death Room' upstairs and her links with the aristocracy.

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Come Dine With Me comes to Leeds, where research fellow Jamie Stark, MP's wife Susan Shelbrooke, student of philosophy Kara Colgrave and supply chain analyst Jemma Pendlebury battle it out for £1000. First host Jamie sets out to impress his guests with his warm and hearty supper, but the highbrow chat about metaphysics and molecular cooking hardly excite a rather bored Jemma. Day two arrives and Susan is planning to reveal her marriage to a Conservative MP, but is worried how the others might react. Day three sees Kara produce a meal inspired by molecular cooking - could it be an experiment too far? After struggling to engage with the others all week, it falls on to Jemma to show the others how it's done with a British-inspired menu.

Three country lovers, Dave Hallam, Kaaren Kitching and Louise Naum, take on Essex boy Matt Potter in Taunton, Somerset. The week starts with Dave Hallam, who shocks his guests by donning a leotard before serving African-themed dishes. Air-hostess Kaaren Kitching is keen to extol the virtues of good honest country cuisine on night two, but her hosting leaves a lot to be desired. Louise Naum is determined that her Czech-inspired food will up the culinary ante, but she also has her work cut out trying to loosen up the rather straightlaced Kaaren.

This week the culinary competition comes from the north Norfolk coast, where two men with very high standards are confronted with two women who take a more casual approach to hygiene. Overshadowing every night is the discovery of hairs in the food, beginning with publishing manager James Holder's. Country sports enthusiast James hopes his freshly shot game will be a hit, but Labour party activist Denise Burke doesn't know what to make of it all, especially when the host produces a gun. Completing the line-up are undertaker Helen Wickes and picture framer Dave Parks.

Come Dine with Me begins in Stamford, Lincolnshire, where the first host is retired aerobics instructor Sue Quinn. Arriving at her door is snobby publican Michael Birt, florist Sophie Cullumbine and foodie Adam Baxter. Sue kicks off the week with a riotous night that sees her immediately clicking with Sophie. Adam thinks he knows why, observing that the pair are the young and old version of effectively the same person - and what's more, he and Michael can't get a word in edgeways. Michael attempts to bring a touch of class to proceedings on his night, with upmarket food and conversation. Sophie, however, has other ideas and is equally as outrageous as on the first night; even Sue despairs of her. When it's Sophie's turn, she realises she needs to reign herself in and be the hostess with the mostess. The boys warm to her over the course of the evening, but after offering up a surprising and unique squirrel dish, the food misfires spectacularly.

Come Dine with Me comes to Staffordshire, where professional opera singer Charlotte Pearson kicks off the week. Project manager Carl Longson is immediately on the wind-up as his chauvinistic tendencies leave the group flabbergasted, especially fabric artist Ingrid Wagner. On the second evening, Ingrid's flamboyant style is matched by her 'food of the world' menu; alas, it's dust that leaves an unwanted and lasting impression on guests. Super confident Richard Turnbull is out to impress, but come his night, the car salesman has his work cut out with an over-ambitious menu. That said, Richard's food is somewhat overshadowed by Carl's behaviour as he goes a step too far with Charlotte; she takes umbrage at his views on the former Miss Stafford's modelling days. After a week of pushing people's buttons, it's Carl himself who feels he might have scuppered his chances.

In a week featuring plenty of sauce, a charm offensive and quite a lot of boasting, flirty mum-of-two Jenny Thorn cooks off against gentleman farmer Matt Titmuss, community artist Gordana Bjelic-Rados and Latin lothario Marco Panico.

Jazz, fashion, lobster and Thai food all feature in the London borough of Hackney as teacher Jason Riley, fashion designer Purple Qie Qin, actor Leon Herbert and sales director Jody Pawson compete to be the best host. Straight-talking language teacher Jason Riley starts the week followed by fashion designer Purple Qie Qinay on day two hoping her authentic Chinese cuisine will wow her guests. Actor Leon Herbert is the third host and banks on his expensive lobster dish and a jazz band for entertainment to put a smile on everyone's face. Sales director Jody Pawson is last to host and worries that his traditional Thai starter smells of urine.

Come Dine with Me sets sail for Guernsey. Island FM radio boss, Mike Huston, kick-starts the week with an evening of 'spice and taste'. Used to being the man in charge, he's less than impressed when his evening is hijacked by 20-year-old entrepreneur, Ben Inder, who thinks he's the best thing since sliced bread. On the second night, fashion designer Kay Davidson dons the oven gloves and tries to impress with a fine dining menu and a sophisticated wine tasting game. Once again, Ben upsets his fellow diners, particularly feisty foodie Gemma Sparkes, when he tries to play wine connoisseur. She soon takes him to task over his arrogant attitude. On Ben's night, guests can't wait to see if he can actually 'walk the walk' and are eager to find flaws. Mike pounces on this opportunity to show Ben who's boss. Taking the spotlight on the final night is wannabe chef Gemma.

In West Yorkshire, retired business woman Jan Lymer finds that pleasing her guests isn't easy, especially wind turbine salesman Marc Stanton. Marc is staunchly meat-eating and is very keen to make this abundantly clear to former vegan and mother-of-five Gemma Rawnsley. Finally, ex-rugby league player Paul Rodney just wants to win... at any cost.

In north west Wales, two very traditional Welsh competitors face off against two people who prefer their food a little bit more exotic. Welsh sheep farmer Gareth Jones finds himself haunted by the presence of chillis on the first night, making the job of host for car rental manager Dale Gough a challenge and a half. Nature reserve worker Roxanne Mcfadden, who considers herself to be Welsh, Mexican, English and American all at once, has high hopes for her international menu.

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Dinner is served with plenty of giggles as a bunch of mischievous comedians take on the dinner party challenge with Angelos Epithemiou, Olivia Lee, Pete Firman and Stan Boardman.

In a two-part Come Dine with Me special for Grand National week, four well-known faces from the world of horse racing go flat out to win a £1000 for charity. First to host is professional jump jockey and Hennessy Gold Cup winner Mattie Batchelor, who's out to prove that jockeys don't just eat lettuce. Night two sees racehorse owner and former Wall Street banker Sally Rowley-Williams host an evening in tribute to past National winners. Joining them for a week of dinner parties are professional footballer turned racehorse trainer Mick Quinn and Channel 4 Racing presenter Emma Spencer.