Theatre in the United Kingdom

William Shakespeare, chief figure of the English Renaissance, is here seen in the Chandos portrait.
Aphra Behn was the first professional woman playwright.The United Kingdom has a vibrant tradition of theatre. Theatre was introduced from Europe to what is now the United Kingdom by the Romans and auditoriums were constructed across the country for this purpose.

By the medieval period theatre had developed with the mummers' plays, a form of early street theatre associated with the Morris dance, concentrating on themes such as Saint George and the Dragon and Robin Hood. These were folk tales re-telling old stories, and the actors travelled from town to town performing these for their audiences in return for money and hospitality. The medieval mystery plays and morality plays, which dealt with Christian themes, were performed at religious festivals.

The reign of Elizabeth I in the late 16th and early 17th century saw a flowering of the drama and all the arts. Perhaps the most famous playwright in the world, William Shakespeare, wrote around 40 plays that are still performed in theatres across the world to this day. They include tragedies, such as Hamlet (1603), Othello (1604), and King Lear (1605); comedies, such as A Midsummer Night's Dream (1594—96) and Twelfth Night (1602); and history plays, such as Henry IV, part 1—2. The Elizabethan age is sometimes nicknamed "the age of Shakespeare" for the amount of influence he held over the era. Other important Elizabethan and 17th-century playwrights include Ben Jonson, Christopher Marlowe, and John Webster.

During the Interregnum 1642—1660, English theatres were kept closed by the Puritans for religious and ideological reasons. When the London theatres opened again with the Restoration of the monarchy in 1660, they flourished under the personal interest and support of Charles II. Wide and socially mixed audiences were attracted by topical writing and by the introduction of the first professional actresses (in Shakespeare's time, all female roles had been played by boys). New genres of the Restoration were heroic drama, pathetic drama, and Restoration comedy. The Restoration plays that have best retained the interest of producers and audiences today are the comedies, such as William Wycherley's The Country Wife (1676), The Rover (1677) by the first professional woman playwright, Aphra Behn, John Vanbrugh's The Relapse (1696), and William Congreve's The Way of the World (1700). Restoration comedy is famous or notorious for its sexual explicitness, a quality encouraged by Charles II (1660–1685) personally and by the rakish aristocratic ethos of his court.

In the 18th century, the highbrow and provocative Restoration comedy lost favour, to be replaced by sentimental comedy, domestic tragedy such as George Lillo's The London Merchant (1731), and by an overwhelming interest in Italian opera. Popular entertainment became more important in this period than ever before, with fair-booth burlesque and mixed forms that are the ancestors of the English music hall. These forms flourished at the expense of legitimate English drama, which went into a long period of decline. By the early 19th century it was no longer represented by stage plays at all, but by the closet drama, plays written to be privately read in a "closet" (a small domestic room).

A change came in the late 19th century with the plays on the London stage by the Irishmen George Bernard Shaw and Oscar Wilde and the Norwegian Henrik Ibsen, all of whom influenced domestic English drama and vitalised it again.

Today the West End of London has a large number of theatres, particularly centred around Shaftesbury Avenue. A prolific composer of the 20th century Andrew Lloyd Webber has dominated the West End for a number of years and his musicals have travelled to Broadway in New York and around the world, as well as being turned into films.

The Royal Shakespeare Company operates out of Shakespeare's birthplace Stratford-upon-Avon in England, producing mainly but not exclusively Shakespeare's plays.

Important modern playwrights include Alan Ayckbourn, John Osborne, Harold Pinter, Tom Stoppard, and Arnold Wesker.