Ghouls

Ghouls -- magically animated corpses of the recently dead. Mindless and thus oblivious to pain, they fight until destroyed.

First encountered in Ultima III, ghouls were easily mistaken for skeletons from a distance, and were sometimes referred to as zombies by the population at large. At that time they posessed no special abilities, though all could be turned with the Clerical enchantment "Pontori", found in the The Ancient Liturgy of Truth.

The ghouls of Ultima VIII:Pagan are all servants of the Titan Lithos, and are mindlessly aggressive towards trespassers, but slow and weak in combat. The only real danger they pose is the pestilence they carry with them, which can kill even the strongest warrior.

Zombies in Ultima IX are clumsy and carry disease just as the Pagan ghouls, but even their severed limbs may attack in combat.

Ghouls from the Age of Darkness could be found almost anywhere in Sosaria during the time of Exodus. Pagan ghouls are mainly found in the cemetery and the catacombs, but can also occur anywhere people have died. Zombies in Ascension are commonly found in graveyards and charnel houses.

Trivia

 * Ghouls and zombies were to be included in the cancelled Ultima X. Links:
 * Ultima X Ghoul
 * Ultima X Zombie