Abandoned and lonely, mutant Caliban often works with groups of heroes to utilize his ability to hunt down other mutants.
Caliban was once a weak, frightened mutant who lived underground. But once he began sensing other mutants around him, he surfaced and found other mutants who took him in.
Like the Shakespearean character he’s named for, Caliban has been labeled as half a monster for most of his life. An underground Morlock, he possesses the ability to sense and track fellow mutants, and can even enhance fear in humans.