13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
SkullUnknown
Scarlet Trainee60Aspiring WallguardEastern Plaguelands
Gol'gere DeathmoonUnknown
Unknown PhantasmUnknown
Twilight BodyguardUnknown
LeyaraUnknown
Scarlet Captain60Eastern Plaguelands
Alpine ChipmunkUnknown
Leonid Barthalomew60Eastern Plaguelands
Scarlet Crusader60Eastern Plaguelands
Percival Barthalomew5Eastern Plaguelands
Kel'rah the ShadowhunterUnknown
Thurandris NightrageUnknown
Legashi SatyrUnknown
Remorseless TormentorUnknown
Tim's Test CreatureUnknown
(DNT) Vehicle Camera TestUnknown
Mana Tide Totem IVUnknown
Kill Credit CreatureUnknown
Violet HoldUnknown
ManamorphUnknown
Alchemy TrainerUnknown
Mana FiendUnknown
Sevren CallahanUnknownPaladin Trainer
Mana PhantomUnknown
Mana RayUnknown
Arcane SentryUnknown
Archmage ModeraUnknown
AlvareuxUnknown
Barian MarylaUnknown
Arcane SentryUnknown
Arcane ManalingUnknown
Arcane ManalingUnknown
Fragmented SentryUnknown
Mana WraithUnknown
Suffused TreantUnknown
BloodshrikeUnknown
Mindless SkeletonUnknown
Alfred the AlchemistUnknownJunior Alchemy Trainer
Jason StonepikeUnknownJunior Blacksmithing Trainer

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.