Captain Donnie of The Inebriated is the undead leader of the zombie pirates that have invaded and are picketing the distillery on Braindeath Island. He is involved in the quest Rum Deal, in which you need to make some 'rum' for him and his zombie crew to drink so that he will reveal whom he works for and they will be kept them drunk and sedated. Towards the end, Donnie accidentally says that he is actually working for the notorious pirate Rabid Jack.
During Rum Deal, Donnie and his crew lays siege to Braindeath Isle, specifically the 'rum' factory. After having made fresh 'rum', Captain Braindeath feeds him drunk with the aid of an adventurer and a deal is made: the zombies will stop meddling with the 'rum' production as long as they get some.