13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Death Talon Seether62Blackwing Lair
Death Talon Wyrmkin61Blackwing Lair
Death Talon Captain62Blackwing Lair
Death Talon Hatcher61Blackwing Lair
Emeraldon Boughguard62Ashenvale
Emeraldon Tree Warder60Ashenvale
Emeraldon Oracle61Ashenvale
Verdantine Boughguard62The Hinterlands
Verdantine Oracle61The Hinterlands
Verdantine Tree Warder60The Hinterlands
Melris Malagan58Captain of the GuardStormwind City
Justine Demalier57Stormwind RecruiterStormwind City
Dreamtracker62The Hinterlands
Dreamroarer62Feralas
Dreamstalker62Ashenvale
Grethok the Controller62Blackwing Lair
Grish Longrunner25Thousand Needles
Jarrodenus55Hippogryph MasterAzshara
Mishellena55Hippogryph MasterFelwood
Bloodfury Ripper26Stonetalon Mountains
Reginald Windsor63Stormwind City
Bibilfaz Featherwhistle55Gryphon MasterWestern Plaguelands
Vhulgra55Wind Rider MasterAshenvale
Khaelyn Steelwing55Gryphon MasterEastern Plaguelands
Georgia55Bat HandlerEastern Plaguelands
Thamarian15Darkshore
Don Pompa20Wetlands
Adam Lind20Wetlands
Sharptalon31Ashenvale
Shadumbra28Ashenvale
Ursangous25Ashenvale
Senani Thunderheart30Ashenvale
Decedra Willham45Dustwallow Marsh
Muglash25Ashenvale
Gurda Ragescar30Ashenvale
Marukai35Ashenvale
Framnali32Ashenvale
Mitsuwa31Ashenvale
Vera Nightshade29Ashenvale
Har'alen28Ashenvale

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.