13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Gurubashi Warrior54–55Stranglethorn Vale
Gurubashi Champion61Zul'Gurub
Son of Hakkar60Zul'Gurub
Soulflayer61Zul'Gurub
Zulian Cub60Zul'Gurub
Zulian Tiger60Zul'Gurub
Zulian Panther60Zul'Gurub
Bloodseeker Bat60Zul'Gurub
Razzashi Broodwidow61Zul'Gurub
Razzashi Serpent60Zul'Gurub
Razzashi Adder60Zul'Gurub
Razzashi Cobra60Zul'Gurub
Hooktooth Frenzy60Zul'Gurub
Foreman Thazz'ril4Durotar
Jin'do the Hexxer63Zul'Gurub
Bloodlord Mandokir63Zul'Gurub
High Priestess Hai'watna57Stranglethorn Vale
Sandfury Speaker61Sandfury Troll AmbassadorZul'Gurub
Witherbark Speaker61Witherbark Troll AmbassadorZul'Gurub
Bloodscalp Speaker61Bloodscalp Troll AmbassadorZul'Gurub
Skullsplitter Speaker61Skullsplitter Troll AmbassadorZul'Gurub
Vilebranch Speaker61Vilebranch Troll AmbassadorZul'Gurub
Nara Meideros30Priest TrainerStormwind City
Priestess Alathea60Priest TrainerDarnassus
High Priest Rohan60Priest TrainerIronforge
Var'jun30Mulgore
Bibbly F'utzbuckle45Desolace
Gordok Enforcer53–54Feralas
Gordok Brute57–58Dire Maul
Gordok Mauler53–54Feralas
Gordok Ogre-Mage52–53Feralas
Gordok Mage-Lord57–58Dire Maul
Gordok Captain59–60Dire Maul
Gordok Spirit60Dire Maul
Mushgog60
Gordok Warlock59–60Dire Maul
Gordok Reaver58–59Dire Maul
Wildspawn Satyr55–56Dire Maul
Wildspawn Rogue56–57Dire Maul
Wildspawn Trickster56–57Dire Maul

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.