Born in Kingston, Jamaica, Scott attended Jamaica College, where he became headboy. He was further educated at the University of the West Indies (UWI), Mona, and taught in Jamaica, Trinidad and Tobago (at Presentation College), and at Yale University in the United States. While at UWI he was the assistant editor of Caribbean Quarterly. Thereafter, he went to Athens, Georgia, on a Shubert Playwrighting Fellowship (1970-1971), and was later awarded a Commonwealth Fellowship to take an education diploma course in Newcastle upon Tyne, England. He returned to teach at Jamaica College, and then became director of the School of Drama at the Cultural Trining Centre in Kingston.
Scott taught at the Yale School of Drama, and was head of the Directing program from 1986 until his death, which occurred in New Haven, Connecticut, at the age of 51.