He later dropped out from the seminary and earned his bachelor's degree from Boston College in 1968. He went on to attend the Yale School of Drama for a year and a half before leaving to begin his work in professional theatre. Antoon died at the age of 47 from AIDS-related lymphoma on January 22, 1992, at the NYU Medical Center.
Alfred Joseph Antoon was born in Methuen, Massachusetts, on December 7, 1944. His parents were Alfred J. Antoon, Sr. and Josephine Antoon (née Saba). Antoon attended Lawrence Central Catholic High School in nearby Lawrence, Massachusetts.