School Work Helper gives a list of dramatic devices, such as dramatic irony, paradox, soliloquy, aside and tragedy. Dramatic irony occurs when the reader knows information that the characters in the play do not know.
A paradox is a statement that seems to be untrue but really is not. The purpose of a paradox is to grab the reader's attention. When an actor or character has a soliloquy, he is on stage by himself professing his feelings and thoughts. Soliloquies allow the reader to know what the character is thinking internally. The purpose of an aside is for the reader to know what the character or a pair of characters are thinking, and the lines are said directly to the audience. Tragedy is the opposite of comedy. A comedy is not necessarily a funny play but is one that is more light-hearted. Characteristics of a tragedy include having a tragic hero, one who has fallen from grace in some way and learns a lesson, and this character is more serious in content and action.
Another dramatic term is foreshadowing. This is a hint or several hints that give the audience a sneak-peak into something that is going to happen in the future. Imagery is used to help the reader form a picture in his mind about what is happening in the drama.