Masks

  The masks worn by actors in greek theatres played a very important role in performances as these masks would often display the general persona of a character, while also being very large so that everyone in the theatre could see the expressions. Sometimes it would display the social status of a character as well.

Garments

 Greek actors would also wear garments to express the character that they were playing as, so if they were playing the part of a soldier they would wear the traditional military attire of that time or wear anything that would properly represent the personality of the character or what the character would have been expected to wear under any circumstance.   Usually clothing would be regular items that any regular person at the time would be wearing unless that character would have the status of someone in a position of athourity.

 Makeup and other accessories

 Actors had no reason to wear makeup as they wore masks the entire time during the play, however they often wore different accessories with their clothing to represent their gender, age, or anything else that would further represent the personality of that character.

Materials

 The masks were usually made of linnen, cotton or other fabrics that could be comfortably worn on the face without overheating the actor in order to deliver a quality performance. Regular clothes were made of cotton, silk, linnen and similar fabrics. Usually these fabrics would be made of very thin material in order to keep the actors from overheating during a play when the weather was hot, and thick material for plays during the winter or colder seasons. Masks were also made of stone or other harder materials.

Props

 In order to complete a proper costume for an actor, they need some sort of prop to further signify their character. If an actor were to play a character that would be subjected to a combat situation, they would most likely have a blunted weapon of some sort. Other roles would also have their own items such as staffs, canes, or other sorts of items similar to that.

Sources 

https://artsedge.kennedy-center.org/interactives/greece/theater/playersProps.html

http://teachinghistory100.org/objects/about_the_object/greek_theatre_mask

http://lsrelay-config-production.s3.amazonaws.com/0acefacd6ca93d10a50d010d305eb0d6fdebbc5ad23fe30c8f228da1c9b37295/block_screen.html?id=65534abd-5dd5-4608-9625-9d7ed5ccd840

Sources

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http://lsrelay-config-production.s3.amazonaws.com/0acefacd6ca93d10a50d010d305eb0d6fdebbc5ad23fe30c8f228da1c9b37295/block_screen.html?id=4b3d826a-58a1-4747-8b8c-673ffd2c27f6

https://artsedge.kennedy-center.org/interactives/greece/theater/playersProps.html