*Crona's gender has not been officially announced. Crona is Ragnarok's meister, and was initially under Medusa's orders (and control) to take any soul they find, be it evil or good. Crona is a very naive and submissive person who is constantly pestered by Ragnarok in the form of noogies and threats to eat their share of food. Crona does not like to fight but Medusa normally introduces a spell into their mind that increases their aggression. Crona's blood has been entirely replaced with 'black blood' which both protects them from physical harm and provides a degree of healing. Ragnarok, originally a normal weapon, was melted into the black blood before the transfusion, which causes their siamese nature. Crona is taking trial courses at Shibusen so they learn the proper way of a meister. Crona is trying to adapt to interacting with more people which may take some time because of Medusa's abusive treatment of them. Often, Crona stays in a corner of any room they are in and will cower in said corner if they are feeling nervous. Crona doesn't know how to interact with others, but is slowly learning how to, thanks to Maka. Maka can easily tune in to Crona's soul wavelength to understand and calm them when needed. Attacks: All of Crona's attack are used together with Ragnarok. Screech Beta: A powerful slash in the form of a mouth Screech Alpha: Same as the Screech Beta but launch at the enemy as a projectile with explosive results. Screech Gamma: A multi-slashing attack with many blood trails that release sound waves in succession.
Jack the Ripper (切り裂�ジャック, Jakku za Ripp� or Kirisaki Jakku) was a killer with claws, a mask, and bondage outfit. In the anime it was suggested that like his name sake he was fond of killing women and was shown after murdering a women and eating her soul "Jack the Ripper" immediately went after another women for her soul only to be stopped by Maka and Soul causing him to become their ninety-ninth evil human soul. (Wikia)
Alcapone (アルカ��, Arukapone) was a Mafia leader who eats souls. He was to be killed by Black Star and Tsubaki, but he and all his family were killed by Mifune for trying to get his hands on the witch Angela's power. Wikia
Referred to as "Pharaoh" (ファラオ, Farao), he was an unnamed ancient pharaoh who resided in the Pyramid of Anubis. He was resurrected by the witch Samantha. Kid could not bring himself to attack while in his symmetrical coffin but was gunned down mercilessly once Kid saw his real (and very mismatched) appearance, leaving only the button on his forehead, which was the only thing symmetrical.
Mabaa (é”婆, Mabaa) is the current leader of all witches. She is held in high regards for being almost as powerful as Shinigami-sama. Her left eye was taken by Free which is now covered by a bandage with 1/2 written across it. Her specialty is Spatial Magic.
Eruka Frog is a frog-themed witch who serves under Medusa Gorgon. Like many other witches, Eruka craves destruction and enjoys the fact that she was born a Witch. However, she is extremely cowardly, preferring to flee rather than fight, and never hesitates begging for mercy when cowed. She can also be considered clingy to her partner, Free, even becoming needy and docile. Despite her malicious intent, Eruka has an earnest disposition with other Witches, including Mizune, with whom she is close friends with. She can be demeaning to those whom she considers inferior, though. Magic: Transform: Eruka transforms into a frog. She can still talk in this form. Egg Bombs: Tadpole-like black balls with frog faces that can hop towards their target before detonating. Arithmetic Magic (Magic Calculation): Used as a 'place maker' for high level spells so they are more precise. (wikipedia)
The leader of a rebellion against humans. Brainwashed the monsters in the forest to join him. His parents were killed in the war by humans. Source: Wikipedia