Career: He co-hosted The Bigger Breakfast and T4 on Channel 4, before signing up to ITV2's Bedrock. Among his presenting credits are EastEnders Revealed, Channel 4's Planet Pop, MTV Select with Kelly Brook and Exclusive with Lisa Rogers. As well as presenting GMTV Today and Entertainment Today, Ben also fronted the station's lifestyle series Inch-loss Beach in 2003 and took a road trip from San Francisco to LA in Ben's Road to Hollywood. He presented the ITV2 show The Xtra Factor since 2004 but quit - reportedly being angry that Dermot O'Leary was brought in to replace Kate Thornton on the main show, instead of him. He has since presented several high-profile shows for ITV and is the face of The Krypton Factor.

Career: In 1987, Ross and his friend Alan Marke devised a format inspired by Late Night with David Letterman, and after struggling to find a suitable host, Ross stepped in. The resulting show, The Last Resort with Jonathan Ross, made him a star. Other major projects include his chat shows Friday Night with Jonathan Ross and The Jonathan Ross Show, and his stint as the reviewer of the BBC's Film programme. He's also a massive comic book fan; his first foray into the genre, Turf, was published in 2010. But he's also hit the headlines for various controversies over the years, including the notorious Sachsgate, which involved a prank call made by him and Russell Brand to actor Andrew Sachs in 2008.

Career: Froch went on to win the English super-middleweight title in 2003, the Commonwealth super-middleweight title in 2004, and the WBC super-middleweight title in 2008, making him a world champion. He lost his first professional fight in 2010 against Mikkel Kessler, losing his WBC title. He regained the belt a few months later by defeating Arthur Abraham. He lost his WBC title to Andre Ward in 2011. A year later, he won the IBF world title and in 2013, he beat Mikkel Kessler in a rematch, which saw him retain his IBF title and win the WBA crown. Since then, Froch has successfully defended his titles in two contests against George Groves. Away from boxing, Froch was a contestant on ITV's celebrity dance contest Stepping Out. In August 2014, he was a participant on BBC One celebrity gymnastics contest Tumble.

Career: Samantha's first taste of fame came at 18 when she represented the UK in the Eurovision Song Contest, eventually finishing joint 10th. But it's as an actress that she's now best known. She enjoyed success with sitcom Game On in the mid-1990s before appearing in The Grimleys, Up 'n' Under and Babes in the Wood. A successful run in a West End production of Guys and Dolls came just before she joined EastEnders in 2007. After being involved in a number of major storylines, she took a break from the soap in 2011. She went on to perform in a stage tour of South Pacific, and was also a subject of Who Do You Think You Are? In May 2013, it was confirmed that Samantha would return to EastEnders on a six-month contract.

Career: Smith's charm swayed Quincy Jones and the NBC TV network to give him a starring role in The Fresh Prince Of Bel-Air, a series that ran for six years. In 1992, he made his film debut with Where the Day Takes You. Since then, he's enjoyed a steady string of box-office hits, including Bad Boys, Independence Day, Men in Black and its two sequels, and Ali, which gained him an Oscar nomination. Other projects include Enemy of the State, Six Degrees of Separation, I, Robot, I Am Legend, Seven Pounds and Hancock. His recent work includes Men in Black 3, After Earth, and new movie Focus.