It has been suggested that the ghoul should appear in Monstrous Races 2. I'm all for that but first we are going to need to define a ghoul's racial statistics as a player character race. This is my first run at, please tear this apart.
Ghouls are defined by class levels--they do not possess racial Hit Dice. Ghouls have the following racial traits.
+2 Dexterity, +2 Charisma, -2 Intelligence: Ghouls are agile creatures who exude a powerful air of malevolence, but are usually less educated than other races.
Speed: Ghouls have a land speed of 30 ft.
Darkvision: Ghouls can see in the dark up to 60 ft.
Natural Weapons: Ghouls possess a bite and two claw attacks that deal 1d6 points of damage as a primary attack.
Paralysis: When a ghoul makes a full attack with only on claw its attack is filled with negative energy that can paralyze opponents for 1d4+1 rounds. The save DC is equal to 10 + ½ character level + Cha modifier. This ability does not function against elves or creatures with 4 more hit dice.
Unnatural Aura: Ghouls possess an unnatural aura that prevents animals from willingly approaching them unless coerced with a Handle Animal, Ride or wild empathy check DC 25.