13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Golem Lord Argelmach57
Voidwalker Minion47Tanaris
Gershala Nightwhisper20Darkshore
Bael'Gar54
Lord Incendius55
High Interrogator Gerstahn52Twilight's Hammer Interrogator
Emperor Dagran Thaurissan59
Commander Gor'shak54Kargath Expeditionary Force
Kharan Mighthammer52
Dughal Stormwing52
Marshal Windsor52
Pyromancer Loregrain52
Lord Roccor51
Overmaster Pyron52
Gorosh the Dervish56Blackrock Depths
Grizzle54Blackrock Depths
Eviscerator54Blackrock Depths
Ok'thor the Breaker53Blackrock Depths
Anub'shiah54Blackrock Depths
Hedrum the Creeper53Blackrock Depths
General Angerforge57
Hate'rel55
Anger'rel55
Vile'rel56
Gloom'rel56
Seeth'rel56
Doom'rel56
Dope'rel56
Warder Stilgiss56
Verek55
Scarshield Grunt53–54Scarshield Legion
Scarshield Sentry53–54Scarshield Legion
Scarshield Acolyte54–55Scarshield LegionBlackrock Spire
Scarshield Quartermaster55Scarshield Legion
Jenal5Ditch DiggerDarnassus
Fineous Darkvire54Chief Architect
Ghede25Thunder Bluff
Warlord Goretooth60Kargath Expeditionary ForceBadlands
Shadowmage Vivian Lagrave58Kargath Expeditionary ForceBadlands
Hierophant Theodora Mulvadania58Kargath Expeditionary ForceBadlands

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.