The Mutineer Ghosts are one of the types of hostile ghosts that inhabit El Patron's Mine and the Cave of Lost Souls. Supposedly, they were once part of El Patron's crew, but they committed a mutiny and were trapped forever in the mine. Unlike the Rage Ghosts, they seem to have retained some of their humanity and deal a considerably lower amount of damage, and they can sometimes be seen as silhouettes of their former selves.

They use cutlasses in battle and can be found at levels 33-40. They can use a number of deadly skills, including Blade Storm.