In contrast, Antonio and Sebastian's characters are developing as unpleasant and arrogant. Their sarcastic asides counter Gonzalo's good humor. They justly point out the flaws in Gonzalo's utopian dream, but they go beyond pointing out the flaws to compete between themselves to see who can devise the cruelest ridicule of both Alonso and Gonzalo. The two are reminiscent of schoolboys, who giggle and whisper in the back of a classroom, in defiance of their teacher. And like schoolboys, Antonio and Sebastian are capable of cruelty, as when they tell Alonso that had he not married his daughter to the African, they would not be on this journey and Ferdinand would not be drowned. They are more than thoughtless and cruel, since they are also capable of forming a conspiracy to murder their king and Sebastian's brother.
Sebastian and Antonio's action hearkens back to the scene between the boatswain and Alonso in Act I. Alonso is king and represents authority. To plot his murder and to seize the crown is to usurp authority given by God. In England, the idea that a king was anointed by god was a crucial point in maintaining authority over the people. To kill God's representative on earth was a rebellion against the highest authority in the heavens. These two conspirators seek greater freedom and power than they are entitled to, and so they plot a coup. However, they forget that they are stranded on this island, with no kingdom to assume. Their plot to make Sebastian king neglects to ask king of what? They are far from Naples, with little expectation of rescue. Indeed, they never mention rescue, and thus, their plot to murder the king and seize his title would make Sebastian king of nothing.
The blending of illusion and reality, which was created in Act I with the imaginary storm, is carried forward in this scene, with Gonzalo's observation that their clothing is unharmed by the salt water, appearing as it did before the storm occurred. Gonzalo envisions a utopia, but the impossibility of such a thing happening is best illustrated by Antonio and Sebastian's plot. Even when there is no reason to plot a murder, they do so. It is in their nature, and one reason why Gonzalo's vision lacks reality is simply because it neglects to consider human nature, which fails to bow to illusion.
The party's whole existence on the island is an illusion and nothing is as it appears. Behind the scene and watching and manipulating all the action is Prospero. Although he never appears in this scene, he is very much present, functioning as a god-like entity. Antonio and Sebastian's swords are stayed because a higher authority prevents their actions. Prospero functions as a god would, protecting the innocent and guiding the action. However, Prospero is not a god, and that, perhaps, is the greatest illusion of all.
