What quotes show Macbeth is a villain?
There are several good quotes that could be used to help illustrate that Macbeth is a villain. Some of the best ones come near the end of the play after it has become clear to everybody that Macbeth is a tyrant and getting worse by the day. His methods of keeping power are far from admirable, and in Act 4, Scene 3, Malcolm has the following to say about Macbeth.
This tyrant, whose sole name blisters our tongues,Was once thought honest.
Not in the legionsOf horrid hell can come a devil more damnedIn evils to top Macbeth.
The prince of Cumberland! That is a stepOn which I must fall down, or else o'erleap,For in my way it lies. Stars, hide your fires;Let not light see my black and deep desires.The eye wink at the hand, yet let that beWhich the eye fears, when it is done, to see.