13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Warlock (TEST)20
Mage (TEST)20
Warrior (TEST)20
Priest (TEST)20
Rogue (TEST)20
Greater Feral Spirit1
Tortured Soul55–56
Foulmaw Hydra52–54
Elder Foulmaw Hydra55–57
Dreadwhisper58
Pissed Vendor5Pissed Vendor
Pissed not a Vendor5Pissed Vendor
Voidwalker17
Greater Voidwalker26
Lesser Netherwalker34
Succubus20
Greater Succubus36
Eliza's Guard28–31Duskwood
Noma Bluntnose15
Berte1
Evalyn1
Combat Dummy1
Heat Miser20Immune to Fire
Snow Miser20Immune to Frost
Good Miser20Immune to Holy
Bad Miser20Immune to Shadow
Earth Miser20Immune to Nature
Steel Miser20Immune to Physical
Black Sheep1
Tree Form 0.3330–32
Treant60
TEST WOLF (ALPHA FIRST)2
TEST WOLF (ALPHA SECOND)2
Webwood Creeper UNUSED3–4
Jaxil Rye5
Haggatha the Crone12
Gunther's Minion7–8
Twain The Tester FOO56Model and Texture
Nag1
Ravenclaw Apparition24

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.