An Inspector Calls is a play written by English dramatist J. B. Priestley, first performed in 1945 (in the Soviet Union) and 1946 (in the UK). It is considered to be one of Priestley's best known works for the stage and one of the classics of mid-20th century English theatre. The play's success and reputation has been boosted in recent years by a successful revival by English director Stephen Daldry for the National Theatre in 1992.