Birth Name: Seán Dermot Fintan O'Leary, Jr.
Age: 42, born 24 May 1973
Born and residing in: United Kingdom
Relationship Status: Married
Partner: Dee Koppang
About: Seán Dermot Fintan O'Leary, Jr. (born 24 May 1973), better known as Dermot O'Leary, is a British-Irish television and radio presenter, best known for his current television and radio work with ITV and BBC Radio 2.
O'Leary's radio career began when he worked as a disc jockey at Essex Radio, but is best known for being the presenter of The X Factor on ITV, a position he has held since 2007 to 2014.