Undead is a term used to refer to a member of Jolly Roger's army of walking skeletons - poor souls brought back from the dead to serve in his revenge. Some of which are French or Spanish ghosts haunting the islands.
Undead have no fear, no matter what level of opponent they face, and will attack without mercy and give no quarter. Fortunately, every weapon in the pirate's Weapon Belt can do them harm. Once the sod's carcass has taken enough damage, they will collapse - releasing Jolly Roger's hold on them and freeing their spirits. Most consider serving in this devil's army to be a fate worse than death.
- Undead are usually pictured as ragged skeletons with little flesh on them and ragged clothing. However, Undead Spanish minions wear some armor and Undead French wear ragged uniforms. This does not affect their stats.
- Undead are sometimes pictured as having green shining orbs for eyes. However, they are mostly displayed as having empty eye sockets.
- It is known the Undead can speak.
Facing one of Jolly Roger's army is frightening enough, but these baddies are even stronger, deadlier and more terrifying.
- Blackheart (Undead Brigand) - Seen almost anywhere Undead Brigands can be found
- Bonebreaker (Undead Mutineer) - Seen on Tortuga in the Rat's Nest
- Bonerattler (Undead Slasher) - Catacombs
- Evan the Digger (Undead Gravedigger)
- Foul Crenshaw (Undead Gravedigger) - Seen in King's Run.
- Francis Faust (Undead Duelist) - seen in Cutthroat Isle, and Lava Gorge
- Jacques le Blanc (French Undead Capitaine) - Isla Cangrejos
- General Bloodless (Undead Brigand) - Murky Hollow
- General Darkhart (Undead Raider) - Las Pulgas
- General Sandspine (Undead Grenadier) - Rat's Nest
- General Hex (Undead Gypsy) - consistently in the Misty Mire
- Gideon Grog (Undead Witchdoctor) - appears in the Murky Hollow or Thieves' Den
- Le Lapon Rouge (French Undead Lieutenant)
- Simon Butcher (Undead Bandit)
- Stench (Undead Slasher)
- Thad Ill-Fortune (Undead Gravedigger)
- Thaddeus Woodworm (Undead Pirate) - Seen in Tortuga Graveyard.
- Timothy Dartan (Undead Gypsy) - Las Pulgas
- Tomas Blanco (Spanish Undead Capitan) - Cutthroat Isle
- Whit Widowmaker (Undead Brute) - Tortuga Graveyard on Tortuga.
- Will Burybones (Undead Gravedigger) - Governor's Garden on Port Royal