Greek theater had different types of performers:
1) Protagonist: The lead actor who played the main role in a play.
2) Deuteragonist: The second most important actor who played a supporting role.
3) Tritagonist: The third most important actor with a smaller role.
4) Chorus Leader: The leader of the chorus, a group of actors who provided commentary on the play.
The most famous ancient Greek actors include Aeschylus, Sophocles, Euripides, and Aristophanes, who were not only playwrights but also prominent performers.