Ahnehnois
First Post
The books pretty clearly describe them as being usable by players, and obviously NPCs can use the classes in the PHB. In practice, the term "NPC classes" is a misnomer. "Nonadventuring classes" would be better.If you have "NPC classes," PCs and NPCs being different is already hardcoded into the rules.
-O
Then again, it is an unfortunate distinction, and the nonadventuring classes should be deeper, more powerful, and more diverse.