Iago - Lieutenant, helper commander Othello from play "Othello". He hates the moor and, even needing to shoot his own place, even together with the assistance of jealousy pushes him that his girlfriend, Desdemona, is cheating on him with Cassio.
Desdemona - Othello's spouse, killed them from jealousy.
Shylock - that the style of William Shakespeare's "retailer of Venice", a covetous Jewish money lender, whose title became a by word to get a selfish and avaricious men and women.