* Lady Macbeth: Lady Macbeth is Macbeth's wife and an equally ambitious character. She is the driving force behind Macbeth's crimes, and she is ultimately destroyed by her own guilt.
* Banquo: Banquo is Macbeth's friend and fellow soldier. He is a wise and noble character who serves as a contrast to Macbeth.
* Hecate: Hecate is the goddess of witchcraft and magic. She appears in the play to encourage Macbeth and Lady Macbeth in their evil deeds.