13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Prospector Whelgar30Explorers' LeagueWetlands
Ormer Ironbraid25Wetlands
Mire Lord42Swamp of Sorrows
Sawtooth Crocolisk38–39Swamp of Sorrows
Murloc Shorestriker16–17Redridge Mountains
Young Sawtooth Crocolisk35–36Swamp of Sorrows
Elder Stranglethorn Tiger34–35Stranglethorn Vale
Sawtooth Snapper41–42Swamp of Sorrows
Monstrous Crawler43–44Swamp of Sorrows
Mountaineer Cobbleflint30Loch Modan
Mountaineer Wallbang30Loch Modan
Mountaineer Gravelgaw30Loch Modan
Captain Rugelfuss40Loch Modan
Chief Engineer Hinderweir VII40Loch Modan
Venture Co. Miner34–35Stranglethorn Vale
Venture Co. Workboss36Stranglethorn Vale
Venture Co. Geologist34–36Stranglethorn Vale
Venture Co. Mechanic34–35Stranglethorn Vale
Eldrin22Journeyman TailorElwynn Forest
Grundel Harkin5ArmorerDun Morogh
Jern Hornhelm15Explorers' LeagueLoch Modan
Lost One Cook37Swamp of Sorrows
Mistvale Gorilla32–33Stranglethorn Vale
Fleshripper13–14Westfall
Skeletal Raider27–28Duskwood
Leech Stalker21–22Wetlands
Leech Widow24Wetlands
Jungle Thunderer37–38Stranglethorn Vale
Rockjaw Skullthumper8–9Dun Morogh
Rockjaw Ambusher9–10Dun Morogh
Rockjaw Bonesnapper9–10Dun Morogh
Rockjaw Backbreaker11–12Dun Morogh
Hammerspine12Dun Morogh
Frostmane Troll7–8Dun Morogh
Frostmane Snowstrider8–9Dun Morogh
Frostmane Hideskinner9–10Dun Morogh
Frostmane Headhunter8–9Dun Morogh
Frostmane Shadowcaster9–10Dun Morogh
Crag Boar5–6Dun Morogh
Large Crag Boar6–7Dun Morogh

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.