A distant relative and fan of Sachiko. She arrives at Lillian during Yumi's second year. Touko is a member of the Drama club, and nicknamed Mechanical Drill by Satou Sei for her corkscrew pigtails. In the beginning of her first year Touko causes some strain in the relationship between Yumi and Sachiko. However, it is apparent later on in the year that she may become Yumi's petite soeur. (Source: Wikipedia) Touko later wins the second card hunt when she half-accidentally makes Yumi uncover her card, thus winning the date with Yumi. She does so by basically asking Yumi to make her a petite soeur, and the recurring date practically ensures that Touko will become just that. In the same episode, we learn that Touko is also not the real daughter of the Matsudaira family, which made her the target for a lot of harsh words from the other close families. Despite this, her adopted family loves her like she was their own biological daughter, who adopted her after her parents died in a car crash, leaving her as the sole survivor. It's also revealed that Touko wants to take over the family hospital after her grandfather, but she wasn't allowed to do so yet, due to her young age. She will most likely be given that opportunity at a later date, though.
A young girl with a fascination with Buddhist statues and art. She enters Lillian Academy (a strictly Catholic institution) by mistake. She has a fierce temper that contradicts her calm exterior and becomes Shimako's petite soeur as Shimako enters her second year. (Source: Wikipedia) In the second season, Noriko becomes Rosa Gigantea en bouton, her grande soeur being Toudou Shimako.
Rei's grande soeur; one of the most well-respected of the Yamayurikai. She is very gifted and good at almost everything, although she is also enigmatic and eccentric. She has a large forehead, which Sei made fun of when they were young, which began their rivalry. She said once that she chose Rei as her sœur to see if anything interesting would happen. She often has friction with Yoshino, as the younger girl is jealous of her bond with Rei. Eriko has four older brothers. After leaving Lillian, she studies Arts. She hates the dentist above all else. (Source: Wikipedia)
Otto Lilienthal, also known as the "Glider King", appears in the first episode where he snatches Yomiko's book while she is in the Library of Congress. The Library team chases him to New York City, where Yomiko builds a giant paper airplane to engage Lilienthal in aerial combat. Yomiko and Nancy defeat him by attaching a paper grappling hook to his glider, which then crashes into the Statue of Liberty.
The older of the Valentine brothers, Luke is entirely unlike his brother, and sports a calm and composed behaviour. like Jan, he does not have any high class vampire abilities, and use a pair of sawed-off M1 Garand rifles as well as knives. Luke challenges Alucard, but grossly underestimate him, and is in the end eaten by Alucards Hellhound.
Tsume is a rough, self-reliant wolf. In the past, he was part of a pack. However, one day his pack was attacked by Jagara's troops and many of his friends were killed. During the fight, Tsume attempted to flee, leaving all of his dead and dying brethren behind. Because of this, the rest of his group disowned him and the leader attacked him, leaving him with a large X-shaped scar across his chest. He was filled with shame, and for many years after didn't associate with any other packs. However, he eventually meets Toboe, who at first seems to annoy him. But, deep down, Tsume feels sympathy and compassion for Toboe, who is the one who eventually convinces him to come with the rest of the "pack" to Paradise. He initially doesn't believe the stories of Paradise, and only follows the others out of an instinct to protect them and stay part of a pack. He often fights with Kiba. However, he does eventually become a believer and enjoy the company of his pack mates. After Kiba, he seems to be the best fighter among all the wolves and also seems to be more logical and observant than all the other wolves; thus it can be argued that he is the most intelligent. Tsume seems to be a Grey wolf or tundra wolf in the anime series. (Source: Wikipedia) Tsume's name means "claw" in Japanese.
Cheza is the Flower Maiden, a girl who was artificially created from a Lunar Flower by the noble Darcia the First using the lost art of alchemy. First appearing in a state of suspended animation within a scientific research lab, she was awakened by the smell of wolf's blood spilled in the brief fight between Tsume and Kiba. After the wolves steal her away, she is pursued by various other characters, forcing the pack to protect her constantly. She shares a special bond with the wolves and is the key to finding Paradise. (Source: Wikipedia)