Career: Hailed as the best new stand-up to emerge in a decade, Michael has taken the comedy world by storm. He delivered electrifying sets on both We Are Not Amused (Prince Charles's 60th birthday celebrations on ITV1) and the Royal Variety Performance (BBC One), plus a stand-out performance as host on the first episode of BBC One's Live at the Apollo, leading to the Comedy Roadshow vehicle.

Career: Willoughby's big break came in 2004 when she returned to CITV as co-presenter of Ministry of Mayhem. The show was later renamed Holly & Stephen's Saturday Showdown. She has worked on TV series Feel the Fear, Stars in Their Eyes and CD: UK. She earned a prime-time slot as co-presenter of Dancing on Ice in 2006, the same year she won a Bafta for her work on children's TV. Other small screen duties have included Greased Lightnin', The Xtra Factor, Streetmate, Holly & Fearne Go Dating, Here Come the Boys and Celebrity Juice. She has co-presented This Morning with Phillip Schofield since September 2009 and co-presented two series of The Voice UK alongside Reggie Yates. In 2012, she began hosting a revived version of Surprise Surprise, and is also the presenter of sports quiz Play to the Whistle.

Career: Carr made his TV debut as a guest on the ITV lunchtime show Today with Des and Mel. He came to true prominence on Channel 4's The Sunday Night Project with Justin Lee Collins. He makes regular guest appearances on panel shows such as 8 Out of 10 Cats and Never Mind The Buzzcocks and has featured as a panellist on Channel 4's annual Big Fat Quiz of the Year, a staple of the Christmas TV schedules. He has also fronted his own game show, Alan Carr's Celebrity Ding Dong, written his autobiography, and continues to perform stand-up. His Channel 4 show Chatty Man attracts some of the biggest names in showbiz and has been a staple of the Channel 4 schedule since 2009. He also presented a weekly programme on Radio 2 for three years, and fronted game show The Singer Takes It All. In 2016, he hosted Alan Carr's Happy Hour, which was a spin off of Chatty Man.

Career: Harriott made the move into TV when he became the resident chef on Good Morning with Anne and Nick. He went on to present Can't Cook, Won't Cook and Ready, Steady, Cook. He has also presented how-to-cook programmes such as Ainsley's Meal's in Minutes and Ainsley's Gourmet Express. In America, he presented more than 100 episodes of The Ainsley Harriott Show, and presented episodes of Ready, Set, Cook!, the American version of Ready, Steady, Cook. On Who Do You Think You Are?, he discovered his great-grandfather had a distinguished military career. In August 2015, it was announced that Harriott would be appearing as a contestant on Strictly Come Dancing.

Career: Take That's first three singles struggled to make much of an impact, but the group scored a breakthrough in 1992 with the single it Only Takes a Minute. They went on to become hugely successful, but suffered a setback when Robbie Williams quit in 1995. The following year, the group disbanded. After Howard's solo career failed to take off, he turned to DJing. Take That reunited in 2005 for an ITV documentary, which was followed by the boys (minus Robbie) hitting the road together. Their 2006 comeback album, Beautiful World, re-established them as one of the biggest bands in Britain, and they've racked up more hits since. Away from the group, Howard has also been a judge on a German dance show and co-hosted the Channel 4 series Mission Ignition.

Career: From there, she progressed to the revamped Radio Five Live, joining the station at its launch in 1994. In that summer, thanks to a recommendation from commentator Julian Wilson, Clare made her TV debut at Royal Ascot, eventually taking over full-time in 1997 alongside former jockey Willie Carson. Since then, she's been a regular on the small screen presenting a wide range of sports, including Wimbledon, the Olympics, and rugby league. She's also branched out into non-sport programmes with the likes of Crufts, Have I Got News For You and Call My Bluff. She's a prolific radio presenter and in 2012 published her autobiography, entitled My Animals and Other Family.

Career: Biggins made his TV debut in a 1971 episode of sitcom Doctor at Large, and has been making audiences laugh ever since. There have been forays into drama with the likes of I, Claudius, The Duchess of Duke Street, Poldark and Upstairs, Downstairs, but his gregarious nature has been put to good use in a variety of comedies. Among his most famous projects are Porridge, Rentaghost, Whatever Happened to the Likely Lads?, The Rocky Horror Picture Show, Some Mothers Do 'Ave 'Em, Cluedo and Psychoville. He was also a co-host on Cilla Black's Surprise Surprise. Biggins won the 2007 series of I'm a Celebrity... Get Me Out of Here! His most recent big-screen credit is the critically panned Britflick Run For Your Wife, and he continues to appear on stage in both plays and panto.

Career: Armstrong made his film and TV debuts in 1994 in There's No Business and A Breed of Heroes. He was introduced to Ben Miller in 1996 and their subsequent success at the Edinburgh Festival Fringe led to their first sketch series in 1997; they've worked together a number of times since on various projects. Armstrong played the lead in short-lived sitcom Beast. He has also appeared in Birthday Girl (2001), I Saw You, TLC, Saxondale, Life Begins, The Trial of Tony Blair, Mutual Friends, Woody Allen's Match Point (2005) and Scoop (2006). Armstrong was the voice of supercomputer Mr Smith in The Sarah Jane Adventures, appeared in the 2011 Doctor Who Christmas Special and has presented the BBC game show Pointless since 2009. In recent years, he has also voiced Danger Mouse in the revival of the animated series and presented Rome's Invisible City, Land of the Midnight Sun and Don't Ask Me Ask Britain.