Play in three acts by Luigi Pirandello, produced and published in Italian in 1921 as Sei personaggi in cerca d'autore. Introducing Pirandello's device of the "theater within the theater," the play explores various levels of illusion and reality. It had a great impact on later playwrights, particularly such practitioners of the Theater of the Absurd as Samuel Beckett, Eugene Ionesco, and Jean Genet, as well as Jean Anouilh and Jean-Paul Sartre.