Brain is a warrior turned mercenary after he lost to Gazef Stronoff in a grand tournament to determine the strongest fighter in Re-Estize Kingdom. He has brown eyes with blue hair and the appearance of a wild beast. He is equipped with a chainmail and wears a necklace and ring which are infused with protection magic. His whole body is lean and his muscles are tough as steel and tempered through experience.

Originally a farmer, he was gifted with what could only be described as a God-given talent in the mastery of the sword. He has always believed himself to be the strongest fighter inside the Kingdom, having never lost a fight before he entered the grand tournament to decide the King's guard captain. He easily fought his way to the final where he faced off against Gazef Stronoff. A grand and close battle ensued between the two, but eventually,​ he would taste his first defeat at the hand of Gazef.

His fame was shattered and his confidence as an unbeatable warrior took a hit. He then decided to do everything he could to become stronger, so he would truly become unbeatable. At the same time, in order to make a living he started working as a mercenary for the Death Spreading Brigade. 


~!When first introduced he is very arrogant, thinking that he is the most powerful, even though he earlier lost to Gazef. While a mercenary, he suffered a devastating defeat at the hand of Shalltear Bloodfallen when she attacked the hideout of the Death Spreading Brigade. After that, his personality changes drastically. Having his confidence completely crushed and getting a feel of what true terror is like, his attitude changes to one where he is completely depressed, hinting at a suicidal tendency.

He eventually does a complete overhaul after meeting Climb and Sebas Tian. He changes to a much friendlier person that starts to think that strength is more than simply being skilled with a sword.

In his second encounter with Shalltear, he managed to chip off Shalltear's pinky fingernail using Fourfold Slash of Light.

In the web novel version, he becomes a vampire under Shalltear.!~

(Source: Overlord Wikia)

The story takes place in the year 2138 when virtual reality gaming is booming. Yggdrasil, a popular online game is quietly shut down one day. However, the protagonist Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as "the most powerful wizard." The world continues to change, with non-player characters (NPCs) beginning to feel emotion. Having no parents, friends, or place in society, this ordinary young man Momonga then strives to take over the new world the game has become. 
 
(Source: Anime News Network)

He was married to voice actor [Kanako Mitsuhashi](https://anilist.co/staff/95546/Kanako-Mitsuhashi) but they divorced on June 2012. 

Non-anime roles:
-Baizhu (Genshin Impact)
-Roland (Punishing: Gray Raven)

__Height:__ 5' 11" 
__Weight:__ 170 ibs 
__Hair:__ Brown 
__Eyes:__ Green 
__Talent Agency:__ http://www.thehorneagency.com/talent/men/halbrook-chad/tp-halbrook-chad.php 
Chad Halbrook is an american voice actor who began his collegiate studies at the acclaimed Theater program at Collin College in Plano, Texas.

[Instagram](https://Instagram.com/brunosangregorio/) | [Facebook](https://facebook.com/clayton.sangregorio)

Bruno Sangregório is an actor, dubbing artist, producer, dubbing coordinator and dubbing director, and also a teacher at the DuBrasil Dubbing Course for Actors. He is married to the voice actress [Luana Stteger](https://anilist.co/staff/197329/).

He also acts as a filmmaker, being a director and screenwriter for the company Intra7 Filmes. He is a founding member and collective director of the theatrical group Mídias Conexas.

[Twitter](https://twitter.com/VictorKuri19/) | [Facebook](https://www.facebook.com/victor.kuri1) | [Instagram](https://www.instagram.com/victorkuri_doblaje/) | [Website](https://www.victorkurilocutor.com/) 

Víctor L. Kuri Vázquez is a Mexican voice actor.

[Website](http://www.gianlucaiacono.it/) | [Youtube](https://www.youtube.com/user/SirYaken) | [Instagram](https://www.instagram.com/gianlucaiacono_official/) | [Twitter](https://twitter.com/iacono_gianluca) | [Facebook](https://www.facebook.com/gianluca.iacono1) | [Twitch](https://www.twitch.tv/gianlucaiacono_official) 

Gianluca Iacono is an Italian voice actor who contributes to voicing characters in movies, cartoons, anime and more content.
Iacono is well known for voicing Vegeta in the Italian version of Dragon Ball Z, Dragon Ball GT, Dragon Ball Super and Roy Mustang in Fullmetal Alchemist.
Between 2010 and 2011, he temporarily replaced Claudio Moneta as the voice of Kakashi Hatake in Naruto: Shippuden.
Iacono currently works at Deneb Film, Studio P.V., Merak Film, Studio ASCI and other dubbing studios in Italy. 

The third season of Overlord. 
 
With his foundations now set in this new world, the first steps of Ains Ooal Gown's master plan apparent begin to come to fruition. The value of Carne village and especially the political value of his alter ego Momon are reaffirmed; the “hidden” genius of his actions is continuously met with shock and awe by Demiurge, Albedo, the rest of his guardians, and even Ains himself at his “great wisdom.” His attempts to act in a way befitting the ruler of Nazarick, continuing to further cement his guardian’s loyalty, push him ever further down the path of not-so-intentional world domination. Without human conscience due to being undead, he is motivated only to continue searching for other players from Yggdrasil and to gain power to better protect the children and home of him and his forty former companions. Lord Ains Ooal Gown maintains his mantle of Overlord and leads the Great Tomb of Nazarick unto the world stage, directly into a vicious power struggle between two great empires.
 (Source: Anime News Network)

The fourth season of Overlord.
 
E-Rantel, the capital city of the newly established Sorcerer Kingdom, suffers from a dire shortage of goods. Once a prosperous city known for its trade, it now faces a crisis due to its caution—or even fear—of its king, Ainz Ooal Gown. To make amends, Ainz sends Albedo to the city as a diplomatic envoy.
 
Meanwhile, the cardinals of the Slane Theocracy discuss how to retaliate against Ainz after his attack crippled the Re-Estize Kingdom's army, plotting for the Baharuth Empire to take over the Sorcerer Kingdom. However, when Emperor Jircniv Rune Farlord El Nix arranges a meeting with the Theocracy's messengers at a colosseum, he is confronted by none other than Ainz himself.
 
With their secret gathering now out in the open, the emperor and his guests learn that Ainz has challenged the Warrior King, the empire's greatest fighter, to a duel. With Ainz's motivations beyond his comprehension, Jircniv can do nothing but watch as humanity's future changes before his very eyes.
 
(Source: MAL Rewrite)

[Website](http://www.sonofrudd.com/) | [Instagram](https://www.instagram.com/matthewdavidrudd)

Film, television, and voice actor. 

The second season of Overlord. 
Continuing his quest to rule this new world, Ains begins to put the pieces in place for his conquest. But between a Lizard Man tribe uprising, and performing missions as adamantite adventurer Lord Momon, Ains has his work cut out for him! Thankfully he has his most loyal and willing subordinates to do his bidding. Nothing and no one can stop the supreme and mighty Overlord in his quest to rule all!
 (Source: Manga Entertainment)

For twelve years, the virtual world of Yggdrasil has served as the playground and battlefield for the skeletal lord Momonga and his guild of fellow monsters, Ainz Ooal Gown. But the guild's glory days are over, and the game is shutting down permanently. When Momonga logs in one last time just to be there when the servers go dark, something happens--and suddenly, fantasy is reality. A rogues' gallery of fanatically devoted NPCs is ready to obey his every order, but the world Momonga now inhabits is not the one he remembers. The game may be over, but the epic tale of Ainz Ooal Gown is only beginning... (Source: Yen Press)

A compilation film recapping the second half of the Overlord anime's first season, with a few extended scenes. 
Embracing his new identity and power as the fearsome overlord Ains Ooal Gown, Momonga continues to navigate the world of Yggdrasil in his quest to bring Nazarick to a new realm of glory throughout the game world. 
(Source: Crunchyroll)

Brain Unglaus