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Othello is the protagonist of the play. His fatal flaw is his jealousy, which is ignited by Iago, the villain of the play. This noble man meets with tragedy by falling prey to Iago’s temptations and believing that his wife is unfaithful to him.
Iago, Othello’s ensign, is the antagonist of the play. He exploits Othello’s weakness, bringing out his fatal flaw of jealousy and making him believe that Desdemona and Cassio are having an affair. During the course of the play, Iago kills Roderigo and Emilia, his wife; and he stabs Cassio, wounding his leg. His evil scheming leads to the deaths of Desdemona and Othello.
The climax of the play occurs when Othello, whose mind has been totally poisoned by Iago, openly accuses his wife of infidelity and refuses to listen to her pleas of innocence. Iago has been successful in his evil plotting. The falling action will seal the tragedy.
The outcome of the play is tragic. Othello, who has been driven to a mad fury of jealousy by Iago, murders Desdemona. The tragedy is further intensified when Iago kills his wife, Emilia, and when Othello kills himself.