Iago

Iago, fictional character, the villain of William Shakespeare’s tragedy Othello (written 1603–04). One of Shakespeare’s most intriguing and plausible villains, Iago frequently takes the audience or reader into his confidence, a device that encourages close observation of his skillful manipulations and their disastrous results. He is a complex character, the full development of a type that Shakespeare first explored in the person of Don John in Much Ado About Nothing (written probably in 1598–99).