Macbeth's character flaw Everyone who is mortal has at least one flaw. Some defects are more serious than others. For example, some people have a gambling addiction, while other people can't remember to put milk away after using it. After a while, though, a person's flaws come back to haunt them. The tragedy MacBeth is no exception to this rule. In it, many of the characters die. The reason is that they have a flaw that ultimately leads to their downfall. However, not all characters deserve their fate. Some characters have a small flaw that shouldn't lead to their death. Others, however, have a serious flaw that ultimately leads to their death. MacBeth kills the first Thane of Cawdor for attempting to lead a revolution against England. His fatal flaw was that he was, according to Ross, "a disloyal traitor". The lord of Cawdor was greedy and wanted the throne of England for himself. As a result, he was murdered. His murder, however, was not truly disheartening, for the Lord of Cawdor deserved his fate. He was waging a battle where many lost their lives for the sake of greed and deserved to die because of his flaw. Duncan was the king of England and was murdered by MacBeth. He was murdered because in order for MacBeth to carry out his plan and become king, Duncan would have to die. Duncan's fatal flaw was that he was too trusting. For example, he thought that none of his friends could really be enemies. If Duncan had been more careful about his safety at MacBeth's castle, he might have had a chance of surviving. However, Duncan's flaw wasn't something so horrible that he would die from it. Most people need to trust each other more, and just because a person did, they shouldn't die because of it. MacBeth's former best friend, Banquo, was also killed by MacBeth. Banquo was killed because he knew too much about Duncan's murder. But that wasn't his fatal flaw. Banquo's fatal flaw was that, despite knowing that MacBeth had killed Duncan, he actually did nothing about it. Banquo had plenty of opportunities to say this to someone like MacDuff