Banquo - He realises that the prophecy has come true and he suspects Macbeth has done wrong to achieve it. He lacks the courage to speak out, however, and says nothing. This is his fatal flaw. ‘Thou hast it now…’
and I fear. Thou played'st most foully for it'
'Thou hast it now: king, Cawdor, Glamis, all, /As the weird women promised