**Height:** 195 cm (6'4") 
**Affiliation:** Black Order 

Allen's teacher, a scientist, and also one of the five Exorcist Generals. Currently, he has gone on a journey and has stopped corresponding with HQ for four years. Allen fears him, which is hinted from the fact most of his flashbacks that connect to his teacher end with some kind of traumatizing (usually humorous for readers) experience. He also has a habit of going into debt and making Allen work it off for him. It is revealed by Bookman that Cross has the unique ability to convert Akuma, making them to work under his orders. The method of conversion is unknown though. Beside that, it's believed that Marian has the ability to control the Noah's Ark (an ability granted to him by a traitor of the Noah family, who was subsequently killed by the Earl), although it's unknown if this hypothesis of the Earl will turn out to be correct. Marian seems to be the only person the Earl is seriously worried about.  Marian is the only exorcist with two anti-akuma weapons. His first one is "Grave of Maria" which is a woman corpse that has a parasite type Anti Akuma weapon, She only serves Master Cross. The second one is "Judgement" which is a Giant revolver Gun and Crosses own Anti-Akuma Weapon. Right now Cross is missing after he talked with Allen about his relation with the 14th.

Towards the end of the 19th century, Allen Walker officially joins the organization of Exorcists that destroy the beings known as Akuma; mechanic weapons made by the Millennium Earl with the suffering souls of the dead. Allen has both a cursed eye and an anti-Akuma weapon as an arm, bearing the power of "Innocence", a gift given to him as an apostle of God. Allen, along with his fellow Exorcists must put a stop to the Millennium Earl's ultimate plot that could lead to the destruction of the world and all who live on it.

__Skills:__ Certified 8th dan in calligraphy

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Christopher Robin Sabat is an American voice actor, producer, ADR director, and line producer at Funimation. He provided voices for a number of English versions of Japanese anime series such as a number of Dragon Ball characters, including Vegeta, Piccolo, Yamcha, and some others. In Funimation's re-dubbing of One Piece, he voices Roronoa Zoro. Other major roles include Kazuma Kuwabara in Yu Yu Hakusho, Alex Louis Armstrong in Fullmetal Alchemist, Tatsumi Saiga in Speed Grapher, Kurogane in Tsubasa Reservoir Chronicle, Daisuke Jigen in Lupin the Third and All Might in My Hero Academia. In video games, he voiced Garland in Dissidia: Final Fantasy, Rundas in Metroid Prime 3: Corruption, Alex D in Deus Ex: Invisible War, and both Captain Smiley and Star in Comic Jumper. He is the founder and director of OkraTron 5000, an audio production company that provides support for some of Funimation's and other dubbing titles.

A born exorcist, Walker's primary anti-akuma weapon is the cross that's embossed on his red, disfigured left hand, which contains Innocence. But not only does Walker destroy akuma, he sees the akuma hiding inside a person's soul! Together with his fellow exorcists fighting under the command of the Black Order, Walker leads the battle against the Millennium Earl, the evil being out to destroy mankind.
 
(Source: Viz Media)

D.Gray-man(Zone) is a one shot manga that is considered the pilot or  starting point of D.Gray-Man. It is also known as chapter "0" of D.Gray-man and shares many similarities to the story.

Despite the recent Akuma attack, the members of the Black Order are in high spirits as they set about moving to a new base. Immediately upon his arrival, however, Allen Walker is suddenly called by the Central Agency and has his arm forcefully sealed by the Order. He is then led to a surprising meeting with his master, General Cross Marian, who reveals staggering secrets surrounding the enigmatic 14th Noah. 

A phantom thief incident, the arrival of a mysterious group of Exorcists, the death of an important comrade, and an all-out battle against the Noah Family—just what does this mean for Allen, Yuu Kanda, and the rest of the Order? This is but the beginning of a series of strange, seemingly unconnected events that lead to something far greater. 

(Source: MAL Rewrite)