What is it about how Iago is characterized in the play Othello and how he acts that makes him such a vivid villain, even today?

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What is it about how Iago is characterized in the play Othello and how he acts that makes him such a vivid villain, even today?

Question Description

What is it about how Iago is characterized in the play Othello and how he acts that makes him such a vivid villain, even today? We still use the expression “an Iago” to describe someone evil and underhanded.