13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Seer Ravenfeather10Mulgore
Redrock Earth Spirit1Durotar
Minor Manifestation of Earth15Durotar
Searn Firewarder15Orgrimmar
Minor Manifestation of Fire12Durotar
Corrupt Minor Manifestation of Water22Silverpine Forest
Minor Manifestation of Water22Silverpine Forest
Corrupt Water Spirit19Silverpine Forest
Brine23The Barrens
Telf Joolam35Durotar
Islen Waterseer37The Barrens
Prate Cloudseer37Thousand Needles
Xanis Flameweaver15Thunder Bluff
Kranal Fiss15The Barrens
Grunt Dogran20The Barrens
Cazul40Orgrimmar
Zankaja15Orgrimmar
Grunt Logmar20The Barrens
Deviate Faerie Dragon20Wailing Caverns
Brother Ravenoak29Stonetalon Mountains
Sentinel Amarassan27Stonetalon Mountains
Clara Charles2Elwynn Forest
Sorrow Wing27Stonetalon Mountains
Sister Riven28Stonetalon Mountains
Foreman Rigger24Stonetalon Mountains
Taskmaster Whipfang22Stonetalon Mountains
Achellios the Banished31Thousand Needles
Heartrazor32Thousand Needles
Ironeye the Invincible37Thousand Needles
Vile Sting35Thousand Needles
Uthan Stillwater14FishermanMulgore
Vira Younghoof13First Aid TrainerMulgore
Harn Longcast9Fishing SuppliesMulgore
Lau'Tiki14FishermanDurotar
Zansoa14Fishing SuppliesDurotar
Rawrk15First Aid TrainerDurotar
Yonada25Tailoring & Leatherworking SuppliesThe Barrens
Hare1Durotar
Den Grunt55Durotar
Razor Hill Grunt28–31Durotar

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.