Macbeth An individual that is evil is characterized as being a person who has a malicious disposition and thoughts. The power of evil is strongly evident throughout William Shakespeare's Macbeth. It is established through Macbeth's desires to kill Duncan, Macbeth's intentions to kill Banquo and Lady Macbeth's influences to persuade Macbeth to kill Duncan. An example that demonstrates how strong the power of evil can be Macbeth's desires to kill Duncan, the king of Scotland. 1"My thought, whose murder yet is but fantastical, shakes so my single state of man that function is smother'd in surmise, and nothing