Watch Free Online HD Moviesjoy. Who is Sycorax? The first character in Shakespeare's "Tempest" to set foot on the island. The problem is that she has no voice. She is barely mentioned by Prospero as a crooked, old, wicked witch who vilely locked Ariel, the spirit of the air, in a tree. But why would she do that? Here, we wouldn't believe Prospero so much.