Dame Harriet Mary Walter is a British actress. She has performed on stage with the Royal Shakespeare Company, and received an Olivier Award, and nominations for a Tony Award, five Emmy Awards, and a Screen Actors Guild Award. In 2011, Walter was appointed Dame Commander of the Order of the British Empire (DBE) for services to drama.

Mary Stuart is a verse play by Friedrich Schiller that depicts the last days of Mary, Queen of Scots. The play consists of five acts, each divided into several scenes. The play had its première in Weimar, Germany on 14 June 1800. The play formed the basis for Donizetti's opera Maria Stuarda (1835).