Possibly the most heinous villain in Shakespeare, Iago is fascinating for his most terrible characteristic: his utter lack of convincing motivation for his actions. In the first scene, he claims to be angry at Othello for having passed him over for the position of lieutenant (I.i. 7–32). At the end of Act I, scene iii, Iago says he thinks Othello may have slept with his wife, Emilia: "It is thought abroad that 'twixt my sheets / …showed first 75 words of 425 total…

…showed last 75 words of 425 total…that he can deflect her questions; he is able to tell Othello of the handkerchief and know that Othello will not doubt him; he is able to tell the audience, "And what's he then that says I play the villain," and know that it will laugh as though he were a clown (II.iii.310). Though the most inveterate liar, Iago inspires all of the play's characters the trait that is most lethal to Othello: trust.