Voice: Satoshi Hino

The leader of the guild Ainz Ooal Gown and the ruler of the Great Tomb of Nazarick. After the DMMO-RPG "YGGDRASIL" ended service, he was transported to a new world, though still in the form of his skeleton avatar.

"Know my name. I am Ainz Ooal Gown."

Voice: Yumi Hara

An NPC who served the 41 supreme members of Ainz Ooal Gown, and the Overseer of the Guardians of the Great Tomb of Nazarick. In this position, she stands tall as the leader of all the other Guardians. She's a peerless beauty, but due to Ainz changing some of her settings, she has also has gained a really disappointing side to her personality…

"I will conquer this world for you, my lord."

Voice: Sumire Uesaka

An NPC who served the 41 supreme members of Ainz Ooal Gown, and the Guardian of the first to third floors in the Great Tomb of Nazarick. She is a vampire, and despite her young appearance, she is the strongest out of all the guardians in terms of one-on-one combat. She has strange tastes, and loves Ainz from the bottom of her heart.

"I am a cruel, cold, heartless… and lovely monster."

Voice: Emiri Katō

An NPC who served the 41 supreme members of Ainz Ooal Gown, and the Guardian of the sixth floor in the Great Tomb of Nazarick. She's a girl with two-colored eyes, but is dressed like a boy at the whims of the player that made her. She has a positive personality and is always full of energy. Mare is her twin brother.

"I kinda wanted it, but if it's your orders, Lord Ainz, I guess I'll give it up."

Voice: Yumi Uchiyama

An NPC who served the 41 supreme members of Ainz Ooal Gown, and the Guardian of the sixth floor in the Great Tomb of Nazarick. Just like Aura, this boy has two different colored eyes, and is dressed like a girl at the whims of his player. He is very timid and cowardly, and can't go against anything his twin sister Aura says.

"Oh… I just remembered something I have to do…"

Voice: Kenta Miyake

An NPC who served the 41 supreme members of Ainz Ooal Gown, and the Guardian of the fifth floor in the Great Tomb of Nazarick. This strange-looking NPC has a large body, and almost looks like an insect walking on two legs. His speech and actions fit the mold of a warrior perfectly, and he always respects those who he feels are passionate warriors, no matter their rank.

"So you have responded to our loyalty to you."

Voice: Shigeru Chiba

An NPC who served the 41 supreme members of Ainz Ooal Gown, and the Butler in the Great Tomb of Nazarick. He commands the combat maid brigade Pleiades. In terms of rank, he is on the same level as the Floor Guardians, and isn't outdone by them. He's also a fairly decent person, and makes a habit of saving those weaker than himself.

"My reason for existing is to serve you, my lord, and obey your orders."

Voice: Manami Numakura

One of the six combat maids in the Great Tomb of Nazarick who are part of the combat maid brigade Pleiades. Like many of the NPCs in Nazarick, she has a hatred for humans. She's not good at holding herself back, and has a quick temper and sharp tongue as a result. Her true form is quite strange-looking, but she usually takes the form of a beautiful black-haired girl.

"Silence, you scum. Know your place before you dare to speak to me."

Voice: Satoshi Hino

The adventurer disguise Ainz uses in order to gather information and money in the new world. He is enveloped in a full suit of jet black armor, and uses a giant bastard sword. He is forced to use the sword in close-combat, due to the fact that he can barely use magic in this form.

"Watch them be buried without mercy."