Captain Rabid Jack

Rabid Jack is a pirate, and possibly a zombie. He is usually dressed in red (as in the Rocking Out quest cutscene). He seems to be in command of a number of ships within the Southeastern Sea.

Rabid Jack has been mentioned by numerous characters. He seems to be in control of Mi-Gor and Captain Donnie, who have respectively laid siege to Harmony Island and Braindeath Island. His goal remains unclear, but he is probably trying to take over the Southeastern Sea for the second time, and gain vengeance.

With the zombies, however, this proves hard to achieve. Therefore, he tries to make the zombie brains "un-rot", by swapping them with human brains. This attempt of brain-swapping was not successful, as depicted in The Great Brain Robbery quest.

It's possible Rabid Jack has been made on the base of Davey Jones from "Pirates of the Caribbean". This is because when he was last seen, during the Battle of the Archipelago, he grabbed some chest before his jump. It's possible it contains his heart, as its content hasn't been revealed. Also,when he jumps he says that the sea would never let him die. This could also be reference to Calypso from PotC who is the Goddess of Sea, and who made Davy Jones Invincible.

History
Rabid Jack was once a pirate captain of "This Albatross" ruling over the Southestern Sea. He once docked at Mos Le'Harmless. Though his brutal methods were a cause for concern to some of the pirates, they reluctantly allowed him to remain, as he was capable of fending off the port's many enemies.

Jack, however, wanted more influence in the Eastern Sea, and launched a massive attack on Mos Le'Harmless. Using his ship, The Scourge, he was able to cause significant damage, but was ultimately repelled and defeated. As he retreated to the south, he renamed his ship This Albatross, saying that it would be a curse upon pirates forever. He made his camp on the Cursed Archipelago, a group of islands filled with 'wicked magic and evil spirits'. Rabid Jack made the place inaccessible, so that others couldn't touch him.



Because of his work, the Customs officers began to hunt pirates so they fell in conflict with him. He was eventually tracked to his Archipelago and was involved in a fight with five powerful pirate captains:
 * Captain Braindeath
 * Captain Bill Teach
 * Captain Brass Hand Harry
 * Cap'n Izzy No-Beard
 * Captain One-Eyed Hector

They managed to catch the "This Albatross" on anchor and boarded it. All of Jack's people were killed, excluding Bosum Giles, before he was forced to fight. However, he killed Liżzie, the first person who attacked him, in a few hits. After that, Young Ralph shot a cannonball from Harry's ship, killing Giles and seriously wounding Jack.

It seems that Giles's death had upset Rabid Jack. He knew he had lost everyone, and it was no longer impossible to defend his ship. He tried to wound Cap'n Izzy, grabbed the chest from the deck, and prepared to jump out, saying that this might break his body. This suggests that he was planning to turn into a zombie. He cursed all of the pirates on deck with vengeance, and jumped.

This was the last time he was seen alive. All the pirates who took part in bringing him down took an oath that nobody would spill any facts about this event. The oath was not broken for a long time, until the zombies attacked Braindeath Island. It was discovered that it was Rabid Jack who had sent them. Captain Braindeath knew that Rabid Jack was about to return, or had returned, and this clearly shocked him.

More information about this event are revealed during the ending of the Rocking Out quest, when the oath is broken by Young Ralph, after the agreement of all five captains.