How is Othello a villain?
Iago is, although he is more likely to get others to do bad things than to do them himself. He does murder Roderigo, after egging him on to kill Cassio. He also induces Othello to murder Desdemona. The villain in Othello is Iago as he twists Othello's mind and gets him to kill Desdemona, steals from Roderigo and kills him, kills Emilia, wounds Cassio and ruins his job.
Of course Iago is a villain, a malcontent - to be more specific. He schemes ever since the beginning of the play to bring down Othello arguably for no real reason at all. Iago is abusive to all that know him, including desdemona, Roderigo, Cassio, and his wife Emelia. Constantly verbal irony takes place when Iago is referred to as "Honest," when in reality he is quite the opposite
There are three Shakespearean characters who are African and are called Moors. Some if not all of them were intended to be North African types, not sub-saharan. They are: Aaron in Titus Andronicus who is a villain of the melodrama type, The Prince of Morocco in The Merchant of Venice who is somewhat comic, and Othello in Othello who is a tragic hero.
There is no novel of Othello, actually. The famous Othello is a play by Shakespeare. Plays are not novels. If Othello was white, Othello wouldn't have been insecure, his relationship with Desdemona wouldn't be disapproved of and Iago might have hated Othello less. That is, of course assuming that Othello is white and so is everybody else. If Othello were white and everyone else was black, the story would be much the same because Othello's…
Brabantio is Desdemona's father. He becomes very upset when Desdemona elopes with Othello and accuses Othello of committing witchcraft in order to woo his daughter. Othello denies any wrongdoing and Brabantio warns Othello that if Desdemona deceived her father, she can deceive Othello as well. Brabantio dies from a broken-heart resulting from Desdemona's marriage.