A native Philadelphian, Quinn began his Equity career in 1970. His credits include 10 Broadway shows. He was first elected to the Council, Equity's national governing body, in 1977. Since that time he has served as third vice-president, first vice president and for 17 years chaired the Union's negotiating teams for its flagship Production Contract. In 2000, the membership elected him to the first of three terms as president.