Iago is a character in William Shakespeare's play Othello. He is a schemer who manipulates the other characters in the play to achieve his own ends. He is often seen as the villain of the play, and is responsible for the downfall of the protagonist, Othello. Iago is a master of deception and manipulation, and his schemes are often complex and far-reaching. He is a master of disguise and misdirection, and his machinations are often difficult to unravel.