HAMLET In the play Hamlet, by William Shakespeare, Hamlet, the main character is a man who wants revenge. He wants it so bad that he becomes obsessed with the idea until it ultimately kills him. Insanity has been defined in many different ways, but essentially, it's a state in the thoughts and emotions of a person restrict his or her reasoning proper judgment. Hamlet lets the fact that his uncle killed his father rule his actions for most of the play. He can't think of anything else. Also seeing the ghost of his dead father and then having it tell him tha