Barone tends to be distant from others, often using the excuse that they wouldn't understand. He can be somewhat feminine, as he likes to comb his hair with Battle Spirits cards. In battle, however, he shows a much more savage side. Barone was the mazoku in charge of Rome, and a powerful Brave user. He allowed the humans he ruled over to battle for their freedom, but none could ever beat him. When Dan arrived in the future, Barone watched his battle with Duc. Seeing that Dan was a human Brave user, he became fascinated. Defying orders, he went off to challenge Dan. Although he won the battle, he was shocked when Dan defeated Strike-Siegwurm, the spirit he called "my friend."
An "evil" person whom Ogami Rei seems to be looking for, who is in fact his brother and the leader of "Re:Code", a group of power users (similar to the Code:Breakers) opposing Eden. He appears to be a very charismatic leader, referred to by several Re:Code as a precious friend and at the same time, an equally ruthless one, as he doesn't hesitate to discard useless subordinates. He used to take care of Ogami in the past, and is acquainted with Prime Minister Fujiwara, President Shibuya, and even Sakurakouji Sakura when she was a child. He possesses proficient swordsmanship, being able to slash his opponents without being seen unsheathing his sword. It was also speculated he has the power to read minds, however this is proven false as he was in just making conclusions based on his observations and using his high IQ. He reappeared in Japan with his Re:Code in search of the "Pandora box", which is said to bestow special powers. Leading the Re:Code, he assaulted the Shibuya mansion and successfully retrieved the box. With the box opened with Shibuya's blood, his true form, a long-haired man with a scar across the face who is exponentially more vicious and cruel, was restored. His two powers also returned, one of which is the power of fast healing "Cell regeneration" and the other is "Absolute Space", an ability to reduce space between him and his opponents. However, he still stood no chance against Ogami's blue flame, and was burnt to ashes. His last words were asking Ogami to live, as "death is too good for him". Despite his cruelty towards Ogami, it's shown that he cares deeply for his brother, and long before his death has requested his trusted Re:Codes to protect Ogami should Eden come after him in the event the Code:Emperor's soul in his left arm awakens. During this fight, it was revealed that the "Seeking One" was once a member of Eden's "Code:Name" group, who were superior to the "Code:Number" (like Ogami, Toki or Yuuki) in both ranks and powers. According to Shibuya (his sword teacher), the "Seeking One" was an exceptionally respected person, possessing "two marvelous powers with high intelligence, the heart of pride which cherishes justice and respects lives", and was thus deemed the pursuer of universal truth, the "Code:Seeker." When he tried to investigate the mysterious "32nd of December", Eden attempted to assassinate him and the "Seeking One" was left physically and emotionally scarred. Afterward, he traveled with Ogami, whom he often abused but kept alive and protected for his left arm (which the remnant of the dead Code:Emperor, a coveted object). Later, a young Sakurakouji Sakura sealed his power inside the "Pandora box". His current form is in fact his lost power form, which takes his image and heart in his younger days and is identical to that of his brother, Ogami Rei.
Devo the Cursed (renamed to D'Bo in the American version of the video games and Soul Sacrifice in the Viz translation of the manga) is an assassin hired by Dio to kill the protagonists. His stand is Ebony Devil, which is powered by his anger and hatred. Because of this, he allows himself to be injured regularly to make himself angrier. As a result, he has numerous scars over his body.
Rudolph the Reindeer is a candy addicted and one of the nine Reindeers fighting under the Grand Santa Claus' commands in order to defeat Cauchemar, which, being the personification of the pain and sadness felt by the souls of humans who have suffered and committed suicide, attack human children whose souls are still pure. However, after 200 years of performing this duty, the Grand Santa Claus, Klaus-sama, had reached his limit and was about to die, and so he inserted his own powers into a snowflake and released it all over the world, in the search for new vessels and sucessors. Each of the nine Reindeers were then given the mission of going out on a journey in order to find these sucessors and continue to fight the Cauchemar. While in the search for the person in whom the crystal dwelled, Rudolph went to London and met Salt, explaining him that his eyes had become silver thanks to the Santa Claus' snowflake that had entered his body and then acknowledging him as the ninth sucessor of the Santa Claus. After the contract between them was finally made, time kept on passing by and both of them continued to fight the Cauchemar, as seen in Noel La Neige.
Livio the Double Fang is a childhood friend of Wolfwood and the final member of the Gung-Ho Guns from the Eye of Michael. He wields the Double Fangs, two small cross-shaped machine guns strapped on his arms that fire from both ends. His body has been enhanced through increased metabolic rate, allowing him to recover from near fatal wounds in a matter of seconds. He grows up in the same orphanage as Wolfwood, having the nickname, "Livio the Crybaby". Razlo the Tri-Punisher of Death is a violent and psychotic split personality, treated as another member of the Gung-Ho Guns. Razlo is created to take all of the abuse given by Livio's father, allowing Livio to not know about it. Razlo only appears after Livio has suffered intense pain or violence, and often commits act of violence, such as killing Livio's parents. He uses three Punishers, the same gun as Wolfwood owns, with the aid of a bionic arm. He is aided by three servants who carry his Punishers while Livio's persona is active. The two fight with Wolfwood and they are defeated, though Wolfwood dies after sustaining immense injuries while overdosing himself on the regeneration drug. In the aftermath of the fight Livio comes to terms with Razlo's existence stating that he is now strong enough to face life on his own without the questionable help of his psychotic personality, who recedes in the back of his mind. Vash decides to forgive Livio afterward, and he becomes Vash's partner in an act of redemption, seeking to live as Wolfwood would have. Livio fights against Elendira. Unable to win himself, Livio allows Razlo to awake and help him kill the Crimsonnail, by utilizing Razlo's faster reflexes and better eye sight. Livio later lives together with the children in his old orphanage and is shown paying his respects to Wolfwood's gravestone.
Summoned by Jester Karture as an Assassin in the fake Holy Grail War in Snowfield. She is a former candidate for the position of Hassan-i Sabbah, the pseudonym shared by the leaders of the League of Assassins, the Hashshashin. She was known a particularly faithful girl in a certain country whose existence is referred to as "merely a story." She underwent intense training to earn herself a name, and she was pious to the point in attempting to prove her faith that she was labelled as a "zealot" with despise by even those who worshiped the same God. While their group could be called a company of fanatics, her convictions were so beyond the norm that they earned her that title. She did not hate those who disparaged her because she believed the reason she was despised was because of her own immaturity and that her conviction was not firm. She wished to become the sect’s leader, which required that she acquire power that could be called Divine Miracles. These Miracles had some unique specifications in that they must all quickly and reliably snuff out the lives of heretics and infidels. The leaders in the past obtained their titles by achieving numerous miracles worthy of bearing the name of the Fallen Angel in the form of Zabaniya, so she continued her mad pursuit of self-improvement incessantly, seeking the miracles that were achieved by her predecessors. She recreated them one by one, but the World seemed to only shout “Still not enough” at her without pause. The other members were shocked by her achievements to the point where they could not believe what had happened. While she had achieved the miracles of all eighteen leaders in the past, no one in the sect acknowledged her right to inherit the leadership. It was her proof, soaked in blood and sweat, and she knew better than everyone what it really took to reach that point. The faithfuls began to shun her, telling her that “What you achieved is no different from making copies of old tomes. You have not achieved your own Miracle, because there is still immaturity within you.” While she did lack the ability to innovate, their denial was only half of the reason. They feared her, she who learned all of those techniques in the span of a few years. Their final reasoning was that “You are still too young. We cannot have someone like you bearing the title of our leader.”, and although it was filled with nothing but excuses, she obeyed without question. She simply questioned her own faith, and believed herself to be juvenile in having defiled the secret techniques of their past leaders. She did not blame anyone, but still continued the quest for her own secret technique. “The Hundred-Faced One,” a man capable of resolving every single situation masterfully, eventually became the nineteenth leader, and upon recognizing his ability, Zabaniya: Delusional Illusion, was one she did not have, she was ashamed of her own immaturity rather than filled with envy. She did not fulfill anything in the end, nor did she receive any acknowledgement. She merely lived as a zealot, and she was not even allowed to be martyred for her faith. She spent her life meaninglessly until the end, but still bore the World no hatred. Still ashamed of her immaturity, she again dove into the whirlpool of faith because she has no emotions to allow her to bear a grudge. The only things she despised were the false idols of infidels, making her a zealot that no normal man could redeem. That is her whole story which merely disappeared into the abyss of history as that of another zealot, and while it should have ended there, it was reborn the instant when the zealot become the False Grail’s chosen. (Source: Type-Moon Wikia)