13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Darkreaver's Fallen Charger60Scholomance
Sergeant Thunderhorn55Weapons QuartermasterHall of Legends
Ebonroc63Blackwing Lair
Swift Stormsaber1Darnassus
Zapped Shore Strider48–49Feralas
Zapped Land Walker48Feralas
Overseer Maltorius50Searing Gorge
Thorium Brotherhood Lookout50The Thorium BrotherhoodSearing Gorge
Master Smith Burninate52The Thorium BrotherhoodSearing Gorge
Overseer Oilfist60The Thorium BrotherhoodSearing Gorge
Taskmaster Scrange54The Thorium BrotherhoodSearing Gorge
Hansel Heavyhands53The Thorium BrotherhoodSearing Gorge
Evonice Sootsmoker51The Thorium BrotherhoodSearing Gorge
Lookout Captain Lolo Longstriker59The Thorium BrotherhoodSearing Gorge
Zorbin Fandazzle40Feralas
Zapped Wave Strider47–48Feralas
Zapped Deep Strider47–49Feralas
Zapped Cliff Giant49Feralas
Stratholme Trigger1Stratholme
Stinglasher47Feralas
Sever25Shadowfang Keep
Balzaphon60Stratholme
Lady Falther'ess40Razorfen Downs
Revanchion60Dire Maul
Scorn34Scarlet Monastery
Lord Blackwood60Scholomance
Lumbering Horror1
Silverwing Elite55Ashenvale
Horde Elite55The Barrens
Horde Laborer26The Barrens
High Overlord Saurfang62Orgrimmar
Field Marshal Stonebridge62Stormwind City
Clavicus Knavingham35Alliance Cloth QuartermasterStormwind City
Mistina Steelshield35Alliance Cloth QuartermasterIronforge
Bubulo Acerbus35Alliance Cloth QuartermasterIronforge
Raedon Duskstriker35Alliance Cloth QuartermasterDarnassus
Rashona Straglash35Horde Cloth QuartermasterOrgrimmar
Vehena35Horde Cloth QuartermasterOrgrimmar
Rumstag Proudstrider35Horde Cloth QuartermasterThunder Bluff
Ralston Farnsley35Horde Cloth QuartermasterUndercity

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.