"Sea Wolf" MacKinley is a level 44 quest giver located in Booty Bay in the contested territory of Stranglethorn Vale. He is well known as a man who gets what he wants, as he even collects debts of now undead persons.
He starts the following quests:
As a professional gambler, there are a lot of people owing him money. Known are:
He may be a reference to one of the characters in Jack London's "The Sea-Wolf", most likely captain "Wolf" Larsen.