How many times does the ghost of Banquo appear to Macbeth at banquet?

The Ghost of Banquo appears three times during the banquet scene in Macbeth.

1. First Appearance: He appears to Macbeth alone, seated in the chair meant for him.

2. Second Appearance: He appears again, this time visible to all at the banquet, horrifying the guests.

3. Third Appearance: Macbeth hallucinates him a final time, even after the guests have fled.