Final answer:
Lady Macbeth speaks to the Lords and makes excuses for Macbeth's strange behavior at the feast, attempting to conceal the truth behind his outbursts and to prevent the premature end of the gathering.
Step-by-step explanation:
In Macbeth, it is Lady Macbeth who speaks to the Lords at the feast and makes excuses for Macbeth's outbursts about the ghost of Banquo, ultimately ending the feast early. When Macbeth begins to act erratically upon seeing the ghost, which is invisible to the rest of the company, Lady Macbeth quickly intervenes to prevent the Lords from suspecting the truth behind Macbeth's guilt and their criminal activities.
She offers explanations for his strange behavior, suggesting he has a longstanding affliction prone to sudden outbursts but assures them he will recover shortly. Despite her efforts to maintain control of the situation, the feast ends prematurely when Macbeth cannot be calmed.