Final answer:
The title character of the opera Rigoletto is Rigoletto himself, the court jester to the Duke of Mantua. The opera explores Rigoletto's efforts to protect his daughter.
Step-by-step explanation:
The title character of the opera Rigoletto is Rigoletto himself. Rigoletto is the court jester to the Duke of Mantua. He is a complex character who is both clever and witty, but also deeply flawed and vengeful. The opera revolves around Rigoletto's efforts to protect his daughter from the Duke's advances.