Antonio is Prospero’s brother. He usurped the throne of Milan from his brother with Alonso’s help, willingly abandoning the sovereignty of the Dukedom to Naples.
He shows no appreciation for the island, and finds Gonzalo overly talkative and silly. He has no qualms about loudly mocking him. He suggests to Alonso’s brother Sebastian that the latter usurp the throne of Naples, and offers to perform the murder himself. Lacking chances to do the deed, he follows the King. Ariel’s imprecations leave him searching for someone to fight. He is arrogant, cynical, and a through-and-through villain, not willing to pray for salvation when the ship is sinking and blaming the wreck on the mariners. Faced by Prospero, who begrudgingly forgives him while taking back his Dukedom, he says nothing. He is still able to mock Caliban, however.