Jin Akanishi Birthday: July 4, 1984 Height: 176cm Blood Type: O Image: Free spirit, goes at his own pace, sexy, cool. The type to pour a lot of emotion into his singing. Has a strong interest in English and overseas culture. Has a clear vision of what he wants to do. Often treated by members as being "too free." Can be quite moody at times. On the other hand, he is very natural and relaxed around people he's close to. His famous weakness is his "collarbone." There are stories that he is sensitive or dislikes being touched there. He and Kamenashi form a pair with a powerful presence, often referred to as "Akakame."

Kazuya Kamenashi Birthday: February 23, 1986 Height: 171cm Blood Type: B Image: Hard worker, professional, sexy, reliable. Very skilled at baseball. Extremely high awareness regarding his work. Observes his surroundings well before acting. While he acts composed in public, he has a surprisingly airheaded side. Often ends up being the "responsible one" among the members. Very dedicated to researching how to present himself best. There is a gap between his stage persona and his everyday self. Sometimes shows unexpected reactions to scary or startling things. He looks like he can do anything, but he's not a natural genius; he's the type who "works hard to reach perfection."

Junnosuke Taguchi Birthday: November 29, 1985 Height: 183cm Blood Type: AB Image: Refreshing, bright, airheaded, tall. The tallest among the six members. Skilled at dancing. The type to brighten the mood and liven up the place. Very positive. Constantly cracks jokes, like his signature "Entrance, exit, I'm Taguchi!" Characterized by his persistence even when the other members give him a lukewarm reaction. Often makes airheaded comments. Despite his refreshing looks, he occasionally does strangely weird things. Frequently becomes the target of teasing from the members. Very much the "brightness in charge" within KAT-TUN.

Koki Tanaka Birthday: November 5, 1985 Height: 170cm Blood Type: B Image: Wild, tough-looking, big-brother type. In charge of rapping for KAT-TUN. Also involved in songwriting. His appearance is quite intimidating. Often had aggressive styles in clothing and hair. But in reality, he is very caring. The type who can't leave someone in trouble alone. A big-brother figure who looks after his juniors and younger members. Frequently plays the straight man to the members' antics. Surprisingly childish when he's fooling around. Despite the tough exterior, he is quite comical when with the members. A person with a large gap between his "scary look" and his "deeply emotional nature."

Tatsuya Ueda Birthday: October 4, 1983 Height: 170cm Blood Type: B Image: Sharp eyes, looks strong, cool, martial arts. Loves boxing. Known for training his body. In the early days, he had a very androgynous and mysterious atmosphere. His hairstyle and clothing change drastically depending on the period. He looks quite intimidating. However, he is actually sensitive and deeply affectionate. Has very strong love for the members. While he can take a defiant attitude, he is surprisingly a scaredy-cat. His fear of things like insects often becomes a running gag. There is a huge gap between "scary/strong-looking" and "actually kind." Has a particularly unique chemistry with Nakamaru. A person whose "difference between appearance and personality" is the most interesting in KAT-TUN. The "princess" position.

Yuichi Nakamaru Birthday: September 4, 1983 Height: 176cm Blood Type: O Image: The voice of reason, gentle, sensitive, the one who gets teased. The oldest among the six members. Skilled at beatboxing. Also draws. Has many hobbies like manga and gaming. Serious and sensible. Often acts as the mediator when members have a disagreement. Very kind. However, he is a coward. Dislikes high places. Dislikes needles. Dislikes ghosts and scary stories. Has huge reactions to scary things. Usually calm, but becomes instantly weak when something scary is involved. He seems like the "person with normal sensibilities" among the six, but he has many unique talents like beatboxing.