The Death Scythe in charge of East Asia. She comes off as being bookish and analytical, she is very respectful to all, she was the one that talked Marie out of marrying a toilet using wordplay. She was the student council president when Stein and the other Death Scythes were students, she was the person that scolded Spirit for his endless flirting and Stein's urge to dissect everything, she was said to have been a small, yet talkative child. She still treats the others as little kids like a teacher would (clapping to get their attention and telling them to line up and walk in a single file line) much to the embarrassment of the others. In recent chapters it is shown that she takes the form of a crossbow, able to fire high pressure spirit shots up to 10 km accurately. She is also suggested to have a genius IQ, and is an extremely competent information gatherer and tactician, easily finding one of Arachnephobia's labs. - Wiki
Harvar is Ox's weapon and takes the form of a lance. In weapon form, he has the power of lightning. Like Ox, he is named after a university (in this case, Harvard). His last name is derived from the French word for lightning. Like most weapons, he can change a part of his body into his weapon form; in his case, he can turn one his hands into the point of his lance form, as well as generate an electric charge through an unchanged hand. As evident during the infiltration of the Arachnophobia castle, he is fiercely loyal to Ox and prioritizes his safety above all else while maintaining an ice-cold composure in battle even when Ox does not. -wikipedia
The demon blade, Masamune, is an extremely dangerous weapon and Tsubaki's older brother. He wanders around, possessing others to use him as their weapon to collect any soul he wants. He speaks using ancient words and likes to write haiku. He plays on the fears of others to possess and use them until he takes over their soul. He believes only the strong survive and the weak live only to serve the strong. He developed this way of thinking when Tsubaki inherited the family's multiple weapon forms. He considers himself more worthy than her and believed that he should have gotten the multiple weapon forms. He later lets Tsubaki defeat and absorb him after he sees that she really does care about him. Which gives her his katana form and all of his abilities, simultaneously being the first soul that Tsubaki successfully absorbs. He now resides deep within Tsubaki in the form of a large deer. Attacks: He cannot use any attacks until he has possessed someone to wield him. * Soul Possession: Used by demon blades to overpower and control the soul of its user. * Shadow Puppet: Used by Demon Blade Masamune to control the shadow of the person he possessed for pincer attacks (the puppet can only say shadow). * Puppet Strike: By folding the Shadow Puppet onto the blade, Masamune can create a far reaching lunge thrust. * Split Branches: After the Puppet Strike, large spikes come out from the shadows body to skewer the enemy at close range. * Puppet's Rain: By using multiple Shadow Puppets to restrain his enemy, Masamune stabs his enemy.
During his one episode appearance, Hiro was a loser at Shibusen that couldn't do anything right, and was constantly picked on or used by other students. One day, Hiro learned of Excalibur, and seeked out to be his partner. During his time with Excalibur, he was able to defeat Black Star, Death the Kid, and Kilik at the same time, by simply saying the name of an attack, which was followed by an explosion. Hiro was also able to complete all 1,000 of Excalibur's tasks, but the one thing he could not stand was his incessant sneezing. He later dropped Excalibur and took up weight lifting.
She is one half of Death the Kid's Double Team Demon Guns. She is the younger of the two sisters, and the most naive. Both sisters wear cowgirl (tight sleeveless shirt and cowboy hats) outfits but Patty wears puffy shorts. She has a larger bust size then her sister. She mostly speaks in a sing-song voice. Also, she acts and speaks like a little kid. (She answers test questions in yellow crayon and says "hullo" and "sowwy," like how a child says "hello" and "sorry," etc.). She is so naïve that she thinks everything is all fun and games. She has yet to take anything seriously. If Kid isn't with them, she can use her sister's weapon form and vice verse. She and her sister collects soul in the magazines of their gun forms. She and her sister used to live on the streets of Brooklyn before being found by Kid.
The Death Scythe in charge of Europe. Dressed in a priestly garb and earphones, Justin is devout in his services to the Shinigami. Justin is the youngest in Shibusen's history to become a Death Scythe at the age of thirteen, all without the aid of a partner. His weapon form, the guillotine, fits his title of "executioner". Justin has the ability to read lips but due to his constant use of earphones and the fact that the Shinigami wears a mask, he cannot understand the Shinigami. He tends to pray and give thanks to God for everything, and also tends to speak loudly due to his constant use of headphones. He travels by means of a dune buggy with a coffin on wheels connected to it. In the manga, he is colored with blonde hair and his hairstyle is a tonsure cut, usually worn by monks from European temples. Attacks: Cruciform Sword-Hand, Carcan Claw, Law Abiding Silver Gun. Manga Only: Later in the series he is revealed to be the one that killed BJ (Buttataki Joe) and the traitor of Shibusen. (Source: Wikipedia)
Replaces Medusa as the school's interim doctor. She is Sid's partner, and looks like a mummy due to the fact she is covered in bandages (although she is seen without the bandages). She becomes a combat knife in weapon form. Her last name is a pun on how the word "knives" is pronounced. (Source: Wikipedia)