Diana Quick: Diana Quick. Actress: The Duellists. Eclectic British classical stage actress Diana Quick, of Anglo-Indian descent, specialized in aristocratic ladies and played various members of royalty (queens, baronesses, etc.) throughout her career. Having worked with most of the prominent British theatre companies (RSC, Royal Court, National, Old Vic, etc.), her extensive resume has included "Troilus and Cressida," "The Threepenny Opera," "Billy," "Mother Teresa Is Dead," "Ghosts," "The Old Neighbourhood," "The Sea,"...