13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Kersok Prond25TradesmanWetlands
Samor Festivus25Shady DealerWetlands
Telurinon Moonshadow25Herbalism TrainerWetlands
Naela Trance25BowyerWetlands
Unger Statforth25Horse BreederWetlands
Murndan Derth43GunsmithWetlands
Edwina Monzor25FletcherWetlands
Falkan Armonis25Reagent VendorWetlands
Innkeeper Helbrek30InnkeeperWetlands
Drac Roughcut15TradesmanLoch Modan
Gretta Finespindle24Journeyman LeatherworkerIronforge
Vrok Blunderblast15GunsmithLoch Modan
Ghak Healtouch25Journeyman AlchemistLoch Modan
Jannos Ironwill46Superior MacecrafterArathi Highlands
Morgg Stormshot53Stormwind City
Kali Healtouch14HerbalistLoch Modan
Rann Flamespinner15Tailoring SuppliesLoch Modan
Hargin Mundar20Wetlands
Christoph Faral30Stormwind City
Aedis Brom30Stormwind City
Timothy Clark20Wetlands
Caitlin Grassman20Wetlands
Bart Tidewater20Captain of the Maiden's VirtueWetlands
Andrea Halloran20Wetlands
Murphy West20Wetlands
Derina Rumdnul20Wetlands
Splinter Fist Enslaver30–31Duskwood
Zanzil Zombie43–44Stranglethorn Vale
Zanzil Hunter43–44Stranglethorn Vale
Zanzil Witch Doctor44Stranglethorn Vale
Zanzil Naga44Stranglethorn Vale
Gorlash47Stranglethorn Vale
Mok'rash50Stranglethorn Vale
Negolash52Stranglethorn Vale
Deathguard Linnea22Tirisfal Glades
Deathguard Dillinger22Tirisfal Glades
Gunther Arcanus53Tirisfal Glades
Bethor Iceshard60Undercity
Magistrate Sevren14Tirisfal Glades
Coleman Farthing15Tirisfal Glades

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.