The Pirates who don't do anything
Captain Barnabas Harrigan
Not much is known about the Captain, even to the more familiar crew. Harrigan is a hard, cruel man who is not a fan of other people or talking. He is incredibly powerful, and few have ever lasted more than a few moments in combat with him.
He is a full Free Captain, mandated by the Hurricane King, and until recently had some renown for being a particularly strong fleet. Disappearing for a few months, and returning with only one ship, his fame has calmed down a considerable amount. Combined with his initative to lay low right now, he is at the point where some are unsure if he is even still alive, or at least active as a pirate.