Henry Granville-Barker was a well-known theatre director and directed many of John Galsworthy's Problem plays, making the theatre a forum for debate on social and moral issues. He also wrote significant political plays that raised social problems related to class and the double standards of society. His major plays include 'The Madras House' (1910), 'The Voysey Inheritance' (1905), and 'Waste' (1907).