Annabella

Florio's daughter, in love with her brother, Giovanni. In the course of her affair with Giovanni, she becomes pregnant and agrees to marry Soranzo to cover her transgression. Annabella confesses her incest to the Friar and writes a repentant letter to Giovanni. Soranzo discovers her pregnancy and vows to revenge himself on Annabella and her brother Giovanni at his birthday party. Before he can, however, Giovanni murders his sister, kills Soranzo, and dies fighting Vasques.

Bergetto

Donado's nephew, Bergetto is dense and vulgar. Much of the play's comic relief comes from his efforts to sue for marriage with Annabella. He is murdered by Grimaldi, who mistakes him for Soranzo.

Friar Bonaventura

A friar and Giovanni's professor when he studied a the university. Bonaventura urges Giovanni to fight his incestuous feelings for his sister. When Bonaventura eventually encounters Annabella, he convinces her to repent and to break off the...