Here are some of the more common enemies you might find in your early to middle careers...
These outcasts from society have formed into a loosely organized gang in the territories around Wheaton, making their living from raids and caravan ambush. These will likely be some of your first enemies.
Classes: Fighter, Barbarian, Rogue, Bard
These are the displaced former masters of the area where Arakan now stands. Since the town's establishment they have been pushed deeper into the Blackwood, and still harass the locals.
Classes: Ranger, Rogue, Sorcerer
Omnivorous reptilians found in various stages of evolution, they were driven from the cliffs and caves of what is now known as Fer to brood in the marshes nearby. They are known to eat humans and demihumans, and bear a particular disdain for humand and dwarves.
Classes: Humanoid, Ranger, Druid, Aberration
Fast-breeding and territorial, the fecund orcs have found a place in the huge alliance that seeks to destroy the Three Towns.
Classes: Humanoid, Barbarian, Wizard, Cleric, Monk
A civilization unto themselves, their vast access to metal and other resources allows them to field huge armies. They too have entered into alliance against the Three Towns, and work out of fortresses and strongholds.
Classes: Fighter, Cleric, Sorcerer, Paladin, Ranger
A substantial tribe of mixed orcish ancestry, they have found ready allies against the Three Towns. Their powerful tribesmen, warriors all, go beserk in combat with few thoughts of personal safety.
Classes: Barbarian, Cleric, Scout, Bard