* Banquo's ghost: Banquo's ghost appears to Macbeth at the banquet, foreshadowing his guilt over Banquo's murder. It also suggests that Macbeth will never be able to escape the consequences of his crimes.
* The armed head, the bloody child, and the crowned child: The three apparitions that appear to Macbeth foreshadow his downfall. The armed head represents Macbeth's impending defeat in battle, the bloody child represents the death of his wife and children, and the crowned child represents the rise of Malcolm to the throne.