JI: There is a sort of Iago—someone who is up to some real trouble making—in the book.
John Irving's Favorite New Thriller|John Irving|March 25, 2010|DAILY BEAST
He is comparatively a straightforward character, as straightforward as the Iago of some critics.
Shakespearean Tragedy|A. C. Bradley
What a wicked-minded and remorseless Iago to have seen you doing Kitely night after night!
The Life of Charles Dickens, Vol. I-III, Complete|John Forster
I may add that Iago certainly cannot be taken to exemplify the popular Elizabethan idea of a disciple of Macchiavelli.
Shakespearean Tragedy|A. C. Bradley
The spectators are aware of Iago's villainy and know of Desdemona's innocence.
The Theory of the Theatre|Clayton Hamilton
I think it more naturally spoken by Othello, who, by dwelling so long upon the proof, encouraged Iago to enforce it.
Notes to Shakespeare, Volume III: The Tragedies|Samuel Johnson
Cultural definitions for Iago
Iago
[ (ee-ah-goh) ]
The treacherous villain in the play Othello, by William Shakespeare. As adviser to Othello, a general of Venice, Iago lies to his master and eventually drives him to murder his wife.