A human who became a monster-hunter out of self-preservation. He has a key role the book Strings and leaves a lasting impact on the Fey prince, GreyJohn Barron Grey, né John Barron MacCarrig, son of Owen MacCarrig, son of Leith of the Stone, son of Eithne... More. Seemingly otherwise normal (a bar-owner, divorced, no children, lapsed Catholic), he has a secret that ensures Grey will never, ever forget him.
For the record, Grey was right, and he should have had his own ballad.