Maria Callas is back on stage, as personified by Tony and Emmy winner Tyne Daly in Manhattan Theatre Club’s acclaimed revival of Terrence McNally’s Master Class. In a production helmed by opera director Stephen Wadsworth, Daly counsels a trio of young singers (including Broadway favorite Sierra Boggess) on the sacrifices necessary to achieve great art. Daly, her co-stars and first-nighters chatted with Broadway.com on July 7 as the play celebrated opening night at the Samuel J. Friedman Theatre. Click on to see what they had to say.