[4] His father was Cecil Brinsley Sheridan, a noted comic actor and panto dame at the Olympia Theatre, Dublin.
Noel attended Synge Street CBS and worked for the Irish Independent; he studied for a Bachelor of Communications at Trinity College at night, and began to perform with the Trinity Players.
[5] He was also an amateur artist, painting abstract landscapes, his work appearing from 1958 in the annual exhibitions of Living Art and at the Paris Biennale in 1960; he represented Ireland at the 1962 UNESCO Convention of young painters in Paris and won the Carroll Prize for Painting in 1965 and 1969.
[6] Sheridan worked as a gallery attendant in the Museum of Modern Art (New York), painting by night, and got a scholarship for Columbia University in 1967 for a masters in fine art.
[5] He was from 1980 to 2002 director of the National College of Art and Design (NCAD, Dublin).