Simon James Holliday Gray was an English playwright and memoirist who also had a career as a university lecturer in English literature at Queen Mary, University of London, for 20 years. While teaching at Queen Mary, Gray began his writing career as a novelist in 1963 and, during the next 45 years, in addition to five published novels, wrote 40 original stage plays, screenplays, and screen adaptations of his own and others' works for stage, film and television and became well known for the self-deprecating wit characteristic of several volumes of memoirs or diaries.

Butley is a play by Simon Gray set in the office of an English lecturer at a university in London, England. The title character, a T. S. Eliot scholar, is an alcoholic who loses his wife and his close friend and colleague – and possibly male lover – on the same day. The action of the dark comedy takes place over several hours on the same day during which he bullies students, friends and colleagues while falling apart at the seams. The play won the 1971 Evening Standard Award for Best Play.