Birthday: December 25 Age: 8 (Beginning) 16 (Current) Ren is a hardworking, honest, straightforward and trustworthy child. He has an affinity for dogs and a strange obsession with rice. He is currently living with Haru and his brothers, twins Aki and Shima. Although he is in their care, Ren is very mature for his age and hates being treated like a child, especially by Haru. He loves Haru but would rather put that man's wishes above his own. With an intelligence and perception above average for his age, he prefers to keep to himself and doesn't like to burden others with his insecurities. Due to a complicated childhood and no memory of his biological parents, he is quite naive about the world but is gradually adapting to his new life in Japan.
Kaidou Shima is one of Haru's brothers, who is currently studying in college and working as a part-time tutor. He is composed and cool character. Also has a twin brother named Aki.
She is a high school student of Central High School. Her real name is unknown. She is overly conscious with the proximity of high school boys to her and often thinks too hard of what to do to escape the situation. In the train though, she decides to tease boys who happen to stand or seat near her by moving away. The main trio each had a chance encounter with her; all of them subsequently making her feel more conscious about herself. She is an acquaintance of Yassan.
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)