Born in Blair Athol, Scotland, in 1943. Lives and works in Belfast.

Alastair MacLennan lives in Belfast, Northern Ireland. During the seventies and eighties he performed long performances in the United Kingdom, the United States and Canada, lasting up to 144 hours, without eating or sleeping during the entire process. Since 1989 he has been a member of Black Market International, a prestigious entity dedicated to the art of performance with activity throughout the world. In 1997 he represented Northern Ireland at the Venice Biennale.