Looking through the scenes of the play and finding the differences in characters I will map the changes of Macbeth and Lady Macbeth .
In the second scene of the play, Macbeth is praised for being loyal, brave and savage in battle by the sergeant and Ross. Here Macbeth's violence and killings are praised because they have preserved the rightful king. Duncan is grateful to Macbeth and says when the treacherous Thane of Cawdor is captured he will be executed so awards Macbeth the title 'Thane of Cawdor'. The irony here is that Macbeth, the new Thane will be even more treacherous.
In the next scene, act 1 scene 3, after Macbeth meets the witches, he tells us his thoughts in his first soliloquy. He is already thinking of murder by himself, without the witches giving him this idea. …