Following his graduation from Ridley, Bill Glassco studied at the University of Toronto, Princeton University and Oxford University. From 1959 to 1964, he taught English at the University of Toronto. He lived in New York City from 1967 to 1969, where he studied acting and directing. Glassco returned to Canada in 1969. He founded the Tarragon Theatre with his wife Jane Gordon in 1970
and stayed there until 1982. Later, he became the artistic director of the CentreStage Theatre Company which merged with the Toronto Free Theatre to become CanStage in 1988. In 1982, Glassco was made an Officer of the Order of Canada. In 1989, he returned to the Ridley stage to the produce the gala opening of the Mandeville Theatre. Glassco died in Toronto on September 13, 2004.