He is now engaged to girlfriend Deborah Koppang.
He is known for doing mostly live shows.
Dermot stands at 5 ft 8.5 inches.
Dermot has a column in the british magazine HEAT.
Dermot's favourite family movie is Indiana Jones and the Temple of Doom.
Dermot's a big fan of Steven Spielberg.
Dermot's hero is Ernest Shackleton.
He was a researcher on Mel and Sue's The Light Lunch on Channel 4, where he also did the audience warm-up.
He is an Arsenal fan.
Dermot is a patron of the male cancer awarness campaign, 'Everyman'.
He is a dedicated campaigner for Make Poverty History.
His favourite magazine is Prospect.
He ran the 2005 London Marathon (his third) under four hours for the first time.
He is best known for hosting the fanzine show Big Brother's Little Brother.
He has made it clear that he does not regard himself as English or British, but as Irish, and holds traditional Irish affinities.
Dermot also attended the Sir Charles Lucas Art College in Colchester.
Dermot studied Media and Television, with modules in Politics at Middlesex University, gaining a 2:2 and BA.
He was an altar boy and attended Catholic schools.