Ghouls can learn vampiric Disciplines, but at a much slower rate than vampires. In addition, the maximum level learnable by a ghoul is a function of their domitor's Generation.
Animals can also be ghouled, a tactic particularly favored by the Nosferatu. Animal ghouls tend to grow larger and mutate, the result being a somewhat horrifying parody of the original creature. In addition, almost all ghouled animals develop a taste for blood, regardless of their original diets.
Ghouls are prone to frenzy, although not as strongly as a vampire. In addition, they are addicted to vitae. Ghouls are subject to horrible side effects when the supply dries up. Without vitae, a ghoul will rapidly age physically to his actual chronological age, and ghouls over a century will crumble to dust quickly.
Ghouls tend to fall into three major factions: Vassals, who are the stereotypical blood-addicted servant of a vampire; independent ghouls, who eke out an existence trading favors for blood, and revenants, the hereditary ghoul families