theskywasblue was kind enough to give me the letter T, for which I now have to name five favorite characters whose names start with that.
I have here four manga characters and one lonely person from mainstream fiction. (Actually, it's amazing that I'd have anyone from mainstream fiction!)
Tracy (real name: Eustacia) Quinn is the shy, brainy modern-day heroine of Rumer Godden's China Court, a romance in which the most prominent character is really China Court, the Cornish house in which the Quinn family have lived for the better part of a century. Tracy's only happy memories from childhood were the few years that she lived at China Court with her grandmother. The very ending is problematic, but I have always sympathized very much with Tracy's shyness and her love of the house and the garden.
Tenpou Gensui (Field Marshall Tenpou) is an ancient Chinese god who ends up on the wrong side of a political struggle in Heaven, in Katsuya Minekura's manga Saiyuki Gaiden. He's a brilliant man but also a slob and a bit of a space cadet. He has a keen sense of justice and right. In Minekura's main series Saiyuki (with its continuations: Saiyuki Reload and Saiyuki Reload Blast), Tenpou is reborn as Cho Hakkai. His lover Kenren Taishou (General Kenren) is reborn as Sha Gojyo.
Tokine Yukimura is the female co-lead of Yellow Tanabe's manga series Kekkaishi. She is a teenaged 'barrier master," the current heir of one family of skilled magicians who can protect others from demons by creating magical barriers. Tokine is intense, loyal, studious, and skilled, but the series constantly contrasts her finesse with her male opposite number's magical strength.
Tokito Minoru is a troubled and brash young man with a strange clawed and furred right hand and hardly any memory of his past. In Kazuya Minekura's Wild Adapter, he becomes the friend - and likely more - of the nihilistic young criminal Kubota Makoto. Together, they are trying to find out the secret of the strange drug Wild Adapter, which may have something to do with Tokio's weird hand. Tokito is frank, almost fearless, down-to-earth, and fiercely loyal to the very few people he trusts.
Taki Tooru is a middle school girl in Yuki Midorikawa's manga series Natsume's Book of Friends (or Natsume Yuujinchō). She is able to draw a magic circle that will allow her and others to see youkai, spirits/monsters that are usually invisible to most. She becomes one of the closest friends of Natsume Takashi, a lonely boy who has been tormented by his ability to see youkai. Taki (usually referred to by her family name, as are all the school-age characters in the story) is remakably brave. At first she is quiet and withdrawn as a result of a curse that was placed upon her; later, she becomes lively and more talkative.
Let me know if you would like me to give you a letter too! (It may not be until tomorrow morning, though.)