13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Fungal Ooze45–46
Gordunni Shaman44–45Feralas
Gordunni Ogre Mage41–42Feralas
Gordunni Battlemaster45–46Feralas
Gordunni Mage-Lord45–46Feralas
Gordunni Warlock43–44Feralas
Gordunni Warlord46–47Feralas
Cursed Atal'ai45–46
Zukk'ash Stinger45–46Feralas
Zukk'ash Wasp44–45Feralas
Zukk'ash Worker44–45Feralas
Zukk'ash Tunneler45–46Feralas
Woodpaw Mongrel40–41Feralas
Woodpaw Trapper41–42Feralas
Woodpaw Brute41–42Feralas
Woodpaw Mystic42–43Feralas
Woodpaw Reaver42–43Feralas
Atal'ai Warrior48–49The Temple of Atal'Hakkar
Woodpaw Alpha43–44Feralas
Atal'ai Witch Doctor48–50The Temple of Atal'Hakkar
Groddoc Ape42–43Feralas
Enthralled Atal'ai45–46Swamp of Sorrows
Groddoc Thunderer49–50Feralas
Mummified Atal'ai46–47The Temple of Atal'Hakkar
Groddoc Chestpounder45–46
Unliving Atal'ai48–49The Temple of Atal'Hakkar
Ironfur Bear41–42Feralas
Atal'ai Priest46–47The Temple of Atal'Hakkar
Atal'ai Corpse Eater49–50The Temple of Atal'Hakkar
Atal'ai Deathwalker50–51The Temple of Atal'Hakkar
Grizzled Ironfur Bear44Feralas
Atal'ai High Priest50–51The Temple of Atal'Hakkar
Ironfur Patriarch48–49Feralas
Sprite Dragon47–48Feralas
Nightmare Scalebane49–51The Temple of Atal'Hakkar
Sprite Darter43–45Feralas
Nightmare Wyrmkin50–51The Temple of Atal'Hakkar
Nightmare Wanderer49–50The Temple of Atal'Hakkar
Longtooth Runner40–41Feralas
Longtooth Howler43–44Feralas

Classic reference data from QuestieDB (Forever data, commit c5de61a), with positions on Forever's zone maps. It doesn't confirm that an NPC, location, quest or item is in Forever.