Seeing into the Mind of Iago

"Thus do I ever make my fool my purse, / For I mine own gained knowledge should profane / If I would time expend with such a snipe / But for my sport and profit. I hate the Moor, / And it is thought abroad that 'twixt my sheets / He's done my office. I know not if 't be true, / But I for mere suspicion in that kind / Will do as if for surety" (Othello, I.iii.363-370).

I was going to shorten that quote, but I just had to keep typing -- everything Iago says is pure gold.

What we have here is a significant contrast between what the audience knows and what the characters know. In Othello, the only character who has a firm handle on what's actually going on is Iago. (This is essentially due to the fact that this play is from the vantage point of Iago, who is actually the antagonist.) Here, he establishes a contrast between what the audience knows and what Roderigo and Othello know. Roderigo believes that Iago will help him win back Desdemona if he gives Iago money, but Iago is using him for his "sport and profit." Othello believes that Iago is an honest ensign, but Iago is planning his revenge against Othello who (a) appointed Cassio as his lieutenant rather than Iago and (b) maybe slept with his wife, Edith. I mean, Emilia -- why do I have issues with that name? Maybe it's just because I'm a fan of Edith Wilson.

Iago delivers another soliloquy at the end of Act II to reveal his plan to plant a seed of suspicion that Cassio is spending time 'twixt the sheets with Desdemona, Othello's wife.

What sort of breaks this special relationship Iago has with the audience is that in Act III, Othello begins to share private information with the audience in addition to Iago. In one soliloquy, Othello expresses his internal concerns about Desdemona potentially sleeping with Cassio (III.iii.259-78). However, still, Othello doesn't know the half of what's really going on -- an instance of dramatic irony. Only Iago and the audience can share in the fullness of truth.