Sophocles or Sofokles was the second of the three ancient Greek tragedians whose work has survived to the present day. His first plays were written later than those of Aeschylus, and earlier than those of Euripides. The most famous of Sophocles's tragedies are those concerning Oedipus and Antigone: these are often known as the Theban plays or The Oedipus Cycle, although each play was actually a part of different trilogy, the other members of which are now lost. Sophocles influenced the development of the drama, most importantly by adding a third actor and thereby reducing the importance of the chorus in the presentation of the plot. He also developed his characters to a greater extent than earlier playwrights such as Aeschylus.