The Code:05; she's hailed as one of the most powerful Code:Breakers. At first, Sakura thought she was a man, but she is actually a woman. Rui acts very much like a tomboy but is truthfully immensely shy. She is one of the few to know Shibuya's true identity and often uses this secret to blackmail him. Her addition to the Code of Hammurabi is "and the punishment of death for evil". Rui's ability allows her to manipulate her shadow to defend or to attack by slicing others shadows (the damage done to the shadow becomes real). Her most powerful technique is "Empress Paradox", a shadow monster which envelops her body and can even eats up Rui herself. When Rui loses her power, she becomes a mermaid. She does not get along well with Heike in particular, as in the past she was a Re:Code under the command of "The Seeking One". Her reason for leaving them was because "the thing she needed to protect wasn't there"; this is later revealed as a request from "The Seeking One" to protect Ogami should Eden come after him in the event the Code:Emperor's soul in his left arm awaken. She was closest to Kouji and Yukihina, and once even took a picture together with them. Even though now she refers to "The Seeking One" as a monster, she still has deep respect for him. Further revelations show that Rui belongs to a family of four, all of them (Rui, her parents, and her little brother) being power users. For this reason, her parents were murdered and the incident was covered up as an accident. Rui believed her brother was also dead, until the Code:Emperor showed her that he couldn't summon her brother's soul from hell, which meant he was still alive. Later, it turned out that her brother is the Code:Closer, Saechika.
The head and highly respected man of the yakuza that is said to fight the strong and help the weak and nicknamed "The Raging Dragon of the East". However he is revealed to be a weak ill man who gets nosebleeds when he gets overexcited, but loves his daughter dearly and only wishes for her to be happy and untainted by this world. Yet when he met Rei he could easily see the killer intent in his eyes and warned him that if anything were to happen to his daughter, he would be next.
The current Code: 03. At first glance, he seems pretty calm but goes on a rampage if anyone even brushes him. Oogami described him as the "most barbaric code breaker". He speaks using Kansai-ben. Despite his violent tendencies, he genuinely rewards kindness, and apologizes by giving gifts to people. In chapter 35, he gives Sakura a stuffed animal for her genuine concern for his well-being, and in Chapter 36, he attempts to get a golden toy for Toki as compensation for beating him up, even though he didn't want it. In chapter 36, he admits that he hates Eden, but has joined the organization so that he can take it down. A major love of his is the stuffed animal named Nyanmaru. In recent, he has mistakened Sakura as the true identity of Nyanmaru when her saying reminds him of the animated character. His ability is 'sound' which allows him to listen and identify sounds from distance, travels in the speed of sound and manipulate soundwave to attack. When he temporarily loses his power, he becomes a red-haired cat. Like Heike, he too seems to not prefer the idea of killing, as he went out of his way to save a pregnant woman and a small child from an explosion. His addition to the Code of Hammurabi is "An Eye for an Eye, a Tooth for a Tooth, and the Requiem of Fury for Evil." His Lost Form is a red cat with simple, black eyes, but he keeps his necklace on. It's later revealed that the reason Yuuki works for Eden is for the sake of his childhood friend, Makoto. As a child, Yuuki was ostracized due to his special power, and Makoto and Shigure (another special power user, a future Re:Code) were the only ones to approach him. Once, Yuuki selflessly tried to save others from the rubbles of a collapsed house, and Makoto got severely hurt protecting Yuuki. Since then, he has been in a coma, which caused Shigure to hate Yuuki and vow to kill him to avenge Makoto. In the latest chapters, Makoto is shown to partly regain his consciousness, and is able to send a message in Morse code to Yuuki, telling him to bring his friends the next time he drops by.
An odd guy who is always dressed in a Nyanmaru costume, claiming he is Nyanmaru even though they pointed out to him there is a zipper on his back. He is the only other confirmed "Rare Kind" and has the ability to nullify other powers. He's rather crafty, and takes advantage of the Code:Breakers (namely, Ogami and Toki) quite often when they move into his Shibuya mansion. Although Shibuya's not in possession of any special powers, he's still an extremely able fighter. He trains Ogami Rei and Toki in preparations for the battle against "The Seeking One," and forces them to call him "master." Shibuya's later revealed to be "The Seeking One"'s sword teacher and Sakura's biological father. He wears his costume to prevent Sakura's memory from awakening, and wishes for her live a normal life, a fate usually denied to a Rare Kind. Only Rui knows his secret, and often uses this to threaten him. Like Sakura, when he temporarily loses his Rare Kind's power, he takes a miniature form of himself. In the battle between the Re:Codes and the Code:Breakers, Shibuya remained on a neutral stance, and didn't participate in the fight until "The Seeking One" had retrieved the Pandora box. In the next arc, he temporarily removed his costume and rescued Sakura, Ogami and Haruto from the Code:Breakers.
An egotistical actor who works alongside Julia for the filming of a school drama. He is very full of himself though he acts very nice to Julia. He has a crush on her and tries to woo her. He however gets hit in the face when Julia pushes him out of the way to run and greet Ran. Confused by being spurned, he tries to brush it off only to accidentally bump into Ryou. To add literal insult to injury, Ryou proceeds to belittle him and he skulks off, never to be seen again. As an ongoing gag, every time a character tries to remember him, his image becomes more distorted as nobody remembers him clearly. Ran seems to have been jealous of him after she assumed he and Julia were dating. The only title he goes by is "sensei" which was the character he plays in the TV show he and Julia were filming. Julia does not remember what his real name is either, and he himself says he has no name.
Zorin Blitz is another of Millenniums officers, charged with the mission of assaulting Hellsing HQ. Her forces are met by stiff resistance from Seras and The Geese, but her illusion abilities makes her a fearsome adversary. Zorin's most remarkable features are her tattoos, covering one half of her body, and her weapon, a giant scythe.