Iago is one of Shakespeare's most complex villains. At first glance Iago's character seems to be pure evil. However, such a villain would distract from the impact of the play and would be pedestrian. Shakespeare, to add depth to his villain, makes him amoral, as opposed to the typical immoral villain. Iago's entire scheme begins when the "ignorant, ill-suited" Cassio is given the position he desired. Iago is consumed with envy and plots to steal the position he feels he most justly deserves. Iago deceives, steals, and kills to gain that position. However, it is not that Iago pushes aside his conscience to commit these acts; he entirely lacks a conscience to begin with. Iago's amorality can be seen throughout the play and is demonstrated by his actions. Perhaps the most interesting and exotic character in this tragic play, Iago is able to manipulate others to do things in a way that benefits him and moves him closer toward his goals. He is the main driving force in this play, pushing Othello and everyone else towards their tragic end. .
For someone to constantly lying and deceiving one's wife and friends, one must be extremely evil or, in the case of Iago, amoral. In every scene in which Iago speaks one can point out his deceptive manner. Iago tricks Othello into believing that his own wife is having an affair, without any concrete proof. Othello is so caught up in Iago's lies that he refuses to believe Desdemona when she denies his claims. Much credit must be given to Iago's diabolical dexterity, which enables him to bend and twist the supple minds of his friends and spouse. .
Iago also manages to steal from his own friend without the slightest feeling of guilt. He embezzles the money that Roderigo gives him to win over Desdemona. When Roderigo discovers that Iago has been hoarding his money, he threatens him. However, when Iago tells him some fanciful plot in order to capture Desdemona's heart Roderigo forgets Iago's theft and agrees to kill Cassio.