She is a "Class A" spy (who carries suitable business cards) employed by the government to retrieve information on Lagu by infiltrating Hagen's army dressed as a black Delmo. She runs into Rion and ends up following her. After having been abandoned by her employers and her subsequent rescue by Aika and her friends, she went freelance. She reappears in episode 7, where she joins Rion and company in their assault on the Delmo base. (Source: Wikipedia)
Age: 21 Birthday: November 1 Ren Maaka is the oldest of the Maaka children, has no qualms about sucking blood, and believes vampires to be superior to humans. However, he prefers female victims, seducing female victims and often spending days in their company before he's done with them, and refuses to suck on male blood. Ren sees the act of biting as a metaphor for sexual intercourse, and often commits both acts simultaneously. Ren often appears annoyed at Karin for her seeming lack of vampiric abilities and her friendliness towards humans. While he will listen to his father Henry, Anju is often the one who will calm him when he's annoyed or subtly prod him into acting in certain ways. He greatly fears Elda, whose overly affectionate manner when he was a child causes him to flee at the mere sight or mention of her.
Karin's grandmother. Karin bears a remarkable resemblance to her; the only difference any of the characters seem to notice is Elda's smaller breasts and her much longer pink hair and red eyes. Ren is scared stiff of her; he first met her when he was four, before Karin and Anju were born, and she almost killed him with affection. Elda first appears when she breaks free from her sealed coffin in the Maaka family mansion. Elda's blood preference is love. Elda has a crazy personality and has taken a great interest into Karin. (Taken from Wikipedia.org) (Edited by Tiamat)
Chumley Huffington, known in Japan as Hayato Maeda, was initially a Slifer Red duelist with an extremely pessimistic outlook. Chumley was forced to retake his freshman year after he failed his first time around. His best friends, Jaden Yuki and Syrus Truesdale, come to Duel Academy, and encourage Chumley to gain more confidence in himself. He gradually grows to become a respected card designer for Industrial Illusions.
He is Asuka's personal secretary and also Jun's driver. Although he works for Asuka, he is more morally concerned with Jun's status not only as a human but also her demon side and he tries to help her as much as he can, often worrying for her well being, and showing immense displeasure at the way Jun is treated as a mere hunting dog with no regards to her own feelings or health. As the storyline progresses, he ends up getting caught in a conspiracy that may end up getting him killed and a shocking truth is revealed as he learns more of Lan Asuka's past and the future that she will unleash.
Maria Robotnik is a character that appears in flashbacks for Shadow the Hedgehog, the video games Sonic Adventure 2 and Shadow the Hedgehog, and the anime Sonic X. She is the granddaughter of Professor Gerald Robotnik, and is the cousin of Dr. Ivo "Eggman" Robotnik. Maria suffers from the illness known as "NIDS" (Neuro-Immuno Deficiency Syndrome), which was incurable at the time. Gerald takes on Project Shadow in order to save her. Soon after Shadow is created, the two bond deeply, though it is short-lived as G.U.N. soon raids the ARK, fatally shooting Maria. Before she dies, she encases Shadow in an escape pod and asks him to bring hope to humanity and give humans a chance to be happy. This experience scars Shadow for life, but ultimately his determination to keep his promise to Maria leads him to become friends with Sonic and save the Earth multiple times.