One of Ohno's American friends, Susanna (more frequently known as Susie or Sue), is a petite girl with an avid interest in yaoi. Susanna comes off as somewhat harsh and unsociable, and startles the other Genshiken members by using crude anime and manga quotes in Japanese (written in katakana to show her unfamiliarity with the language). As she makes gains in comprehension, her responding solely in quotes makes it unclear just how much Japanese she understands, much to the chagrin of Ogiue and others. Her extensive knowledge of anime and manga quotes suggests that Susanna is well-versed in both, having seen Neon Genesis Evangelion, Kimi ga Nozomu Eien, Fist of the North Star, Saint Seiya, Neko-Yasha, Mahoromatic, Azumanga Daioh, Doraemon and Lupin III, among others. She also seems to be obsessed with Japanese culture. As for her age, it is undetermined, and those who would know (i.e. Ohno) refuse to tell. Susanna wishes to study in Japan in the near future. In the relaunch of the manga, Sue has transferred to Shiiou University and is a first-year student and new club member of Genshiken. She is very close to Ogiue and still spouts various anime and manga quotes. She is employed by Ogiue to be one of her assistants for the official manga Ogiue is writing and drawing. (Source: Wikipedia)
Clow Reed is the magician who originally created the Clow Cards, and their magical guardians Cerberus and Yue. Born of an English father and a Chinese mother, Clow created a new type of magic that blended both Eastern and Western magical elements. His plan was to hand down the magic to people who would use and protect it while meeting all of the qualifications, however few people could learn his brand of magic. The character of Clow is only seen in flash backs, as he has long been dead before the series starts. Few details are revealed about his character, personality, or life. When Clow knew he was about to die, he chose his then unborn descendent, Sakura Kinomoto, to become the new guardian of the cards and the new master of Yue and Cerberus. Clow's magical ability allowed him to foresee most of the future and plan many of the situations that would enable Sakura to succeed in taking full possession of the Clow Cards. He also deliberately made the sealing wand for the cards pink, reflecting that its future user would be a young girl. He also split his soul into two reincarnations, Eriol Hiiragizawa who had all of his memories and magic he possessed, and Fujitaka Kinomoto, Sakura's father. In the anime adaptation, Clow only splits his soul into a single reincarnation. In the first anime film, the "Madoushi", the spirit of a woman who had fought bitterly with Clow the appropriate use of magic is introduced. After she died, she attempted to continue the feud by having used her powers to embed her spirit in a book. After Sakura accidentally releases her Madoushi, the sorceress refuses to believe Clow is dead and attacks Sakura and her friends for trying to trick her. When Sakura is able to convince her that Clow has gone, the spirit realizes that she had truly loved Clow rather than hating them as she believed. Accepting he has died, her spirit vanishes.
She is one of the 8 identical humans that created from genetic material collected from the male and female agents with the top results over three generations of agents who have gone through the facility. She develops romantic feelings for Fujimaru after she was told by Fujimaru that she is not just a clone but an individual. And later in Season 2 it appears that she and Fujimaru are in relationship.
Yuki, White Album's main heroine, is an idol singer rising in popularity, and is affiliated with the Ogata Productions. She has a warm and kindhearted personality, and is in her second year attending university with Touya, with whom she attended high school together. (Source: Wikipedia)
Touya's childhood friend. She's athletic but a bit of a strange girl. She lost her oldest brother in a traffic accident and now uses Touya as a replacement for him. She probably has a crush on Touya but convinces herself that that's not true.
The third up and coming idol.