Read the extract and answer the question Work on, My medicine work! Thus credulous fools are caught, And many worthy and chaste dames even thus, All guiltle...

Read the extract and answer the question
Work on,
My medicine work! Thus credulous fools are caught,
And many worthy and chaste dames even thus,
All guiltless, meet reproach. What ho! My lord!
My lord, I say!
(Act IV, Scene One, Lines 45 - 49)

The character that enters immediately after is