Dermot O'Leary

On 1st February 2020 Dermot announced he was expecting his first child with wife Dee Koppang.

“I’m very flattered to be asked back to The X Factor, and am currently dusting off my dancing shoes. There is nothing more exciting than hosting live TV on a Saturday night. The show is naturally very close to my heart, after having hosted it for 8 years. I’m really looking forward to it, and excited to be back."

In 2017, O'Leary co-presented the 37th BRIT Awards with Emma Willis. In March 2017, O'Leary guest-presented nine episodes of The Nightly Show on ITV.

O'Leary joined BBC Radio 2 in September 2004, presenting a Saturday afternoon show titled Dermot's Saturday Club, which ran from 2  pm to 4  pm. Following a number of changes to the length and timing of O'Leary's programme, due in part to the arrival of Chris Evans to Radio 2 and his role as presenter of The X Factor, his show was broadcast between 3  pm and 6  pm from April 2009 until its end on 21 January 2017. It focused on new music and had featured live sessions from the likes of Oasis, Supergrass, the Raconteurs, Massive Attack, Kasabian, the Guillemots, Beck, Lily Allen, Foo Fighters, Bloc Party, and Kate Nash. O'Leary also hosted Radio 2's coverage of the Brit Awards and South by Southwest. He won Sony Gold Awards for Music Programme of the Year in 2008, 2010, and 2013..

Since March 2017, O'Leary has presented the Saturday morning breakfast show on BBC Radio 2 between 8  am and 10  am, taking over the slot from Brian Matthew and Sounds of the 60s, which moved to an earlier time of 6am with Tony Blackburn as presenter.

He has voiced television advertisements for Amazon Prime. In 2017, he released a children's book called Toto the Ninja Cat and the Great Snake Escape.

On 29 March 2016, O'Leary returned to The X Factor as a presenter to replace Olly Murs and Caroline Flack for the show's 13th series. In a statement, he said:

In 2016, O'Leary presented the BBC One Saturday night game show The Getaway Car. The series was filmed in November 2015 and began airing in January 2016. He has also guest-presented two episodes of The One Show with Alex Jones.

On 27 March 2015, O'Leary confirmed that he had quit The X Factor after 8 years to pursue other projects. Via his Twitter account, he said:

It was announced on 16 April 2015, that O'Leary's replacements would be Olly Murs and Caroline Flack, who previously co-hosted The Xtra Factor, the X Factor's behind-the-scenes companion programme, together in 2011 and 2012.

In November 2015, O'Leary replaced Terry Wogan on Children in Need due to Wogan's cancer-related ill health, from which he died a couple months later.

In 2015, he was named one of GQ's 50 Best Dressed Men in Britain.

For Red Nose Day 2015, O'Leary participated in a 24-hour dance to raise money for Comic Relief.

In March 2014, O'Leary made a return to Channel 4, where he presented the Live From Space season for three consecutive nights.

On 7 March 2014, along with Jeremy Kyle, Bill Bailey, John Prescott, Richard Osman, Rizzle Kicks, Louis Smith, Levi Roots, and Ricky Wilson, O'Leary went commando for charity to raise awareness of testicular cancer. The promo was released on 24 February 2014.

In 2013, O'Leary presented the ITV campaign From the Heart, which encouraged viewers to consider organ donation. In January 2014, O'Leary filled in for Phillip Schofield for a week when he guest presented This Morning opposite Holly Willoughby.

O'Leary co-owned the Fishy Fishy restaurants in Brighton and Poole. The Poole restaurant closed in 2013, and the Brighton restaurant closed in 2016.

On 19 November 2011 during an episode of The Xtra Factor, it was announced that O'Leary was engaged to his long-term girlfriend Dee Koppang. They married at St Mary the Virgin, Anglican Church, Chiddingstone, Kent on 14 September 2012, arriving at the church in a Mercedes-Benz Pagoda. With reference to starting a family, O'Leary has stated that he would like to have children, but that his career was "hectic." On 1st February 2020 Dermot announced that he was expecting his first child with wife Dee Koppang

From 2010 to 2019, O'Leary presented the National Television Awards for ITV. In 2010, 2012, 2014 and 2016, O'Leary hosted Soccer Aid on ITV, a celebrity football match in aid of the charity Unicef. In 2011, O'Leary hosted the Saturday night entertainment show The Marriage Ref on ITV. In September 2013, O'Leary hosted BRITs Icon: Elton John, a one-off music celebration for ITV.

In March 2010, O'Leary hosted a spin-off edition of the BBC One show Question Time aimed at first time voters, which aired on BBC Three. He also presented Dermot Meets..., a series which saw him interview the likes of David Cameron, Gordon Brown, and Nick Clegg.

In May 2009, O'Leary became the presenter of Matt Lucas and David Walliams's show Rock Profile on BBC.

In March 2009, O'Leary introduced Michael Jackson to an audience of fans at The O2 in what turned out to be Jackson's final public appearance before his death.

O'Leary is a practising Roman Catholic. In an interview with Peter Stanford in the Daily Telegraph on 11 February 2008 he "cheerfully" admitted using contraception while living with his future wife. "I do get it in the neck from some Catholics who say I am a 'buffet Catholic' picking and choosing the bits I like or don't like".

O'Leary's radio career began when he worked as a disc jockey at Essex Radio, but he is best known for being the presenter of The X Factor on ITV, a position he has held every year since 2007 with the exception of 2015, when he stepped down to pursue other ventures. He was then briefly replaced by Olly Murs and Caroline Flack.

On 29 March 2007, it was announced that O'Leary would replace Kate Thornton as the new host of ITV's The X Factor for at least two series. While presenting the show, he reportedly upset Celine Dion, later saying that he "literally had to shut her up."

On 27 November 2007, it was announced that Big Brother: Celebrity Hijack was to be O'Leary's last series of Big Brother, and that he would not return in summer 2008. After seven years, he made his final Big Brother appearance on 28 January 2008.

In March 2007, O'Leary signed a year-long contract with Channel 4 to appear on Hollyoaks. However, this was shortened after a series of disputes on set. Jim Rowe, a series writer at the time, said, "He couldn't follow even the simplest commands. It goes to show how vastly different presenting is to acting". O'Leary hasn't acted since. In 2009, O'Leary presented an episode of The Paul O'Grady Show, standing in for Paul O'Grady.

O'Leary was a presenter for Comic Relief in 2005, 2011 and 2013. He also presented Sport Relief in 2012. In August 2006, O'Leary signed a deal to present the game show 1 vs. 100, which aired on Saturday nights on BBC One in combination with The National Lottery Draws.

In 2005, O'Leary ran the London Marathon for the third time, completing it for his first time under four hours. In 2007, he was an usher at the wedding of Holly Willoughby.

O'Leary supports Arsenal, Celtic and London Irish RUFC. He can be heard on the 'Footballistically Arsenal' podcast with his friends and fellow Arsenal fans Dan Baldwin and Boyd Hilton; on the show, it was mentioned that he owns shares in the club. He supports Wexford GAA in Gaelic games, having attended matches in the past. During a studio guest appearance on Fantasy Football Euro 2004, O'Leary spoke of his support for the Republic of Ireland football team and Ireland Rugby Union team.

O'Leary has campaigned on behalf of Make Poverty History, and has visited Sierra Leone with CAFOD accompanied by his father. He is also a patron of the male cancer awareness campaign Everyman. In 2003, he played in a charity match for the Colchester Gladiators as a punt returner, helping to raise £2,500 for the Barnardo's children's fund.

O'Leary started as a disc jockey at BBC Essex, based in Southend-on-Sea, before becoming a runner on the TV show Light Lunch with Mel Giedroyc and Sue Perkins and then a presenter at Channel 4 as part of the original presenting line-up of the channel's T4 strand, before moving on to present Big Brother's Little Brother (the companion show to Big Brother) on E4 from 2001 onwards. Also in 2001, O'Leary appeared on Lily Savage's Blankety Blank.

O'Leary joined London's indie rock station XFM in 2001, firstly presenting weekday mid-mornings from 10  am to 1  pm, before moving to a Saturday evening show in mid-2002, where he remained until late 2003.

Sean Dermot Fintan O'Leary Jr. (born 24 May 1973), better known as Dermot O'Leary, is a British-Irish television presenter for ITV and a radio presenter for BBC Radio 2.