Here are the classes and levels of the possible human adversaries in UNLIMITED ADVENTURES.
C: CLERIC P: PALADIN
F: FIGHTER R: RANGER
M: MAGE T: THIEF
CLERICS FIGHTERS
Acolyte: 2C Warrior: 2F Priest: 4C Archer: 4F Dark Cleric: 6C Evil Champion: 6F High Priest: 10C Dark Knight: 10F Archpriest: 15C Dark Warlord: 15F Dark Disciple: 20C Dark Overlord: 20F
MAGES THIEVES
Conjurer: 2M Goon: 2T Theurgist: 4M Thug: 4T Magician: 6M Rogue: 6T Necromancer: 10M Thief: 10T Wizard: 15M Master Thief: 15T Master Wizard: 20M High Thief: 20T