Aeschylus-The earliest Greek dramatist and the creator of tragedy

 Aeschylus was an ancient Greek tragedian. He is often described as the father of tragedy. Critics' and scholars' knowledge of the genre begins with his work,and understanding of earlier tragedies is largely based on inferences from his surviving plays.According to Aristotle, he expanded the number of characters in theater allowing conflict among them; characters previously had interacted only with the chorus.

Orestest-the son of Agamenon and Clytemnestra

     In Greek mythology, Orestes was the son of Clytemnestra and Agamemnon. He is the subject of several Ancient Greek plays and of various myths connected with his madness and purification, which retain obscure threads of much older ones.

Electra-the daughter of Agamenon and Clytemnestra