More or less. Caliban is an inhabitant of the island, born to the witch Sycorax, who was banished from Algiers for her sorcery. Caliban's humanity is ambiguous: other characters describe him as a monster, fish, or "mooncalf," but he also has learned human language from Prospero. Exactly how human Caliban is, then, will vary from production to production. It is important to note though, that even in productions that portray Caliban as nonhuman, he will be more earthy and less supernatural than the play's other nonhuman entity, Ariel. However beastly or debased his form, Caliban is flesh-and-blood, unlike the immaterial and (presumably) immortal Ariel.
answered 24 May '11, 21:31