Crimson Sorcerer - Polymorph/Arcane Missiles/Fireblast/counterspell/Very very high dps while spamming AM/blast and polymorph on those 4 pulls are VERY useful
Note : Spells may do more dmg than tooltipped due to a non-player MCable skill which increases their spell dmg. I've had AMs hit for 800+ non crit every 1.5 seconds with these guys if they use it as I try to cast MC on them
Crimson Priest - Power Word : Shield/Heal (Large)/Holy fire (High dmg, long cooldown)
Note : Power word shield from these npcs STACK with priest version. Crimson Battle Mage - Blast Wave/Arcane Explosion
Note : Ever envy mages for their AEs or hate how crappy holy nova is? Mind control one of these and let her/him rip on 3-4 npcs. It's just rediculous the dmg they pump out and it makes mages cry!
Crimson Gallant - Holy Strike(Holy dmg)/Crusader Strike(Increases holy dmg, debuff)/Devotion aura or Retribution aura (I forget which it was)
Note : Bring a paladin and make them cry using these guy's skills. Very high dps for a melee npc. The aura from the npc paladin WILL overwrite player paladin aura if they put up the same auras. Player paladin can put up other auras though.
Crimson Conjurer - Fireblast/frostnova/frostbolt
Note : No you can't summon elementals
Crimson Initiates - Flash heal/Mindblast/Renew (Ticks for 200-300+)/Mana burn(?)
Crimson Monk - Thrash (2 extra attacks)/Snapkick (Stun/knock down)
Crimson Guardsman - Charge/shield bash/disarm
Crimson Defenders - Paladin immunity shield/Hammer of Justice (stun)/Heal/Aura(?)
note that using the immunity shield also makes him immune to mind control.
Crimson Inquisitors - Shadow word pain/crappy other skill
Stratholme Baron/Dead side
Thuzudian Necromancer - Soul Tap (Mana/hp drain)/Bone Armor/Shadowbolt(?)
Note : Bone armor is like PW:S but lasts longer and absorbs a LOT more dmg, low cooldown
Blackwing Lair
Master Elemental Shaper Krixx - Teach Smelt Elementium
Blackwing mage - Arcane Explosion, Fireball.
Blackwing Legionnaires - [Name unknown] - An attack that does 400% damage to dragonkin.