Dermot O'Leary is an Irish-British broadcaster, presenter and event host who has become one of the UK's most recognisable television personalities. Best known for presenting ITV's 'The X Factor' for more than a decade and for co-presenting ITV's 'This Morning' alongside Alison Hammond on Fridays, bank holidays and during school holidays, Dermot has built a reputation for his natural warmth, quick wit and polished presenting style. His ability to engage audiences, think on his feet and bring energy to live broadcasts has made him one of the country's most sought-after hosts for television, corporate events and awards ceremonies.
Dermot's broadcasting career began in radio as a DJ at BBC Essex before moving into television as a runner on Channel 4's 'Light Lunch'. He soon became part of the original presenting line-up for Channel 4's influential 'T4' strand before finding nationwide fame as the host of 'Big Brother's Little Brother'. In 2007, he became the face of ITV's 'The X Factor', guiding the programme through some of its most successful years before returning to host the show in 2016 after a brief break. Alongside his television success, Dermot has enjoyed a distinguished radio career with BBC Radio 2, where he presents the Saturday morning breakfast show and has championed emerging musical talent throughout his career.
Beyond his flagship presenting roles, Dermot has hosted some of Britain's biggest live television events, including the National Television Awards, Soccer Aid for UNICEF, 'Comic Relief', 'Sport Relief' and numerous entertainment specials. He is also a successful author, with his bestselling 'Toto the Ninja Cat' children's book series further showcasing his creativity and broad appeal. His long-standing career across television, radio and publishing reflects his versatility and enduring popularity with audiences of all ages.
As an event host, Dermot combines professionalism, humour and effortless audience engagement. Years of live television have made him an expert at managing high-profile events, interviewing celebrity guests and keeping programmes running seamlessly. Whether hosting awards evenings, conferences, gala dinners or corporate celebrations, Dermot's charisma, experience and approachable personality ensure every event feels polished, entertaining and memorable.
