Denys George Irving (4 January 1944–5 August 1976), was a Welsh filmmaker and musician from Colwyn Bay, North Wales.
During his stay in New York Denys recorded (as Dennis Irving) an interview with the American Jazz/Experimental composer Sun Ra for Pacifica Radio.
In New York Denys pioneered projection systems for ‘psychedelic’ effects, initially using liquid inks on glass slides, and later combining these with a variety of photographic images.
He mounted a powerful projector in his tiny apartment in the East Village and projected images onto the building opposite, often attracting substantial crowds.
Lucifer released several singles, including the infamous "Fuck You" and two LPs, "Big Gun" and "Exit" in which he played all the instruments and also provided the vocals.
He left a wife, Merdelle Jordine, (an actress who was one of the first black women to appear in a British soap opera, Crossroads, playing Trina MacDonald 41 episodes, 1978-1982), whom he had married in 1975, and a son Arthur.
Denys was an attractive and charismatic character who enjoyed operating on the frontier of new developments and challenging the established order of things.