The Necropolis

This area is accessible from north end of House Phiarlan (next to Ruins of Threnal). It contains numerous NPCs, a tavern, a mailbox, a banker and an auctioneer.

Lower Necropolis

 * Julia Farind - General Vendor - this NPC appears to be part of the inn, but is adjacent to the boundary (no tavern regen or spell exchange while standing with this NPC).
 * Artrez Quada - Banker
 * Katyanna Larryne - Auctioneer

One Foot Inn
This is an open-air inn in Lower Necropolis consisting of a few tables and four NPC's:
 * Brand Gorvant - Barkeep
 * Sister Bernadette - Spirit Binder
 * Kaltrop - tutorial- offers a litany of information about different types of undead
 * Bloody Mary - offers a story of how the inn was named

Emerald Claw Champion Camp

 * Pok Tranh - bestows Emerald Claw Nugget
 * Yanoush the Dour

Collectable Collectors

 * Ninevah Shadowsbough
 * Mikela Ravenspear

Litany of the Dead Part 1 quests

 * Vikram Nanpoor - bestows Tomb of the Immortal Heart
 * Skorn - bestows Tomb of the Burning Heart

Litany of the Dead Part 2 quests
Quest bestowers are located in The Necropolis just south of the Tavern area.
 * Bragdii Wyvernborne - bestows Tomb of the Shadow Guard
 * Gunther Gloomtender - bestows Tomb of the Shadow Knight
 * The Herald - bestows The Shadow Crypt

Litany of the Dead Part 3 quests

 * Lady Vienne - bestows Tomb of the Unhallowed
 * Hallestrom - bestows Tomb of the Blighted

Silverflame Champion Camp

 * Gavonn Monthip - teleport to Upper Necropolis
 * Jakob Izakanos - bestows Silver Flame Nugget
 * Jessica Three-Rivers
 * Korryon
 * Squire Rale - Necropolis Scarab powder collector

Litany of the Dead Part 1 quests

 * Fram Redbones - bestows Tomb of the Crimson Heart
 * Raddha Cross - bestows Tomb of the Sanguine Heart
 * Loremistress Jinna - bestows The Bloody Crypt

Litany of the Dead Part 2 quests

 * Samir Sirka - bestows Tomb of the Shadow King
 * Xaeon Penthrax - bestows Tomb of the Shadow Lord

Litany of the Dead Part 3 quests

 * Kyriel Kallistae - bestows Tomb of the Tormented
 * Dessenau - bestows Tomb of the Forbidden
 * Sir Pythias the Radiant - bestows The Cursed Crypt

Litany of the Dead Part 4 quests

 * Lineya Ibane - bestows Inferno of the Damned
 * Bittany Devile - bestows Ghosts of Perdition
 * Holton Kisane - bestows Desecrated Temple of Vol
 * Lowan Nilmani - bestows Flesh Maker's Laboratory
 * Sir Rohine Stiedra - bestows Litany of the Dead

Collectable turn-in NPCs

 * Bilk Howland - Tome of Untold Legends
 * Balkar Aislin - Tattered Tapestries
 * Racella Unary - Shield of Legend

Other NPCs

 * Corpuscles - Messenger of Mentau
 * Dytiana Ysianna - Farshifter

The Mark of Death quests

 * Agmont Juste - bestows A Surprising Alliance
 * Tengir Greathall - bestows Inferno of the Damned (epic)
 * Birtran Kenworthy - bestows Ghosts of Perdition (epic)
 * Nesta Davir - bestows Desecrated Temple of Vol (epic)
 * Paramis Tyl - bestows Flesh Maker's Laboratory (epic)
 * Hamond Byre - bestows The Mark of Death
 * Amicia Lysibor - Farshifter
 * Fountain of Necrotic Might

Zones

 * Orchard of the Macabre (heroic)/(epic)
 * Black Mausoleum
 * Ascension Chamber