‘Othello is a drama of intrigue as well as of character, and Cassio is central to the intrigue. The plot against Othello could not succeed without him. Iago realises that Cassio will be convincing in the role of Desdemona’s supposed lover. His gallantry to her on the quayside in Cyprus (Act 2, Scene 1) gives colour to his reputation as a man likely to be attractive to women. The Florentines, of whom Cassio is one, were noted for their excellent manners and courteous behaviour…’