Kaoru is relatively quiet and reserved, but when he does talk, he tells the truth, if you like it or not. He prefers to go it alone and not to involve anyone else, risking his life for another without hesitation. Like Luna, he holds a death deep in his heart that has changed his life. He's often resourceful and catches onto something before anyone else. He was the only one - besides Luna - who stood up to Howard at the beginning. He seems to relate to Luna more than anyone and appears to be in love with her, although he'd never say it.
Barry is a Pokemon Trainer from Sinnoh. He was shown to have a very hyperactive personality. When he ran into Ash, he demanded Ash pay a large amount of money as compensation for crashing into him within 10 seconds, and he even counted down the time on his Pokétch, and after 4 seconds, seeing as how Ash was still staring at him completely bewildered, Barry started complaining "as if I have time to do this!". Barry admires Paul and his training methods, and wants to be a strong Trainer like him. He also has a slightly similar mentality as Paul's, as in capturing strong Pokémon for training. However, unlike Paul, he still cares for his Pokémon. Dawn knew Barry back when they both lived in Twinleaf Town, however, Barry doesn't remember her. He only recognizes Ash, Brock, and Dawn due to the fact that they participated in the Sinnoh Double Battle Tournament with Paul. It was also revealed that he was good friends with Dawn's rival, Kenny. (Source: Bulbapedia)
Suneo is the fox-faced (inherited from his mother) rich kid who loves to flaunt his material wealth before everyone. He is often seen with Gian, serving as Gian's lackey while they bully Nobita together, though deep down he fears and despises him as much as everyone else. Some of the stories start with Suneo showing off some new video game or toy which evokes Nobita's envy. He has an extensive knowledge of science, and is a talented artist and designer. He has the habit to invite Gian and Shizuka to something or someplace, but always leave Nobita out with one excuse or another. In some scenes, Suneo is seen as a narcissist who loves to stare at himself in the mirror while telling himself that he is the most handsome guy in the world. He is still a bed-wetter and needs to wear diapers when he sleeps, despite being in the fourth grade. He considers this humiliating habit his secret weakness. Suneo is also very self-conscious about his height, being the shortest kid in his class. (Source: Wikipedia)
Nakatani's classmate who originally thought he was disliked by him. He's a very honest person and an airhead but he is also very hard working.
Beautiful, but dangerous, Seung-Suh came to school with a reputation for being dangerous. Angry at Miha, he decides to try to get even with her-with mixed results. He can be extremely petty, but Seung-Suh also has a sweeter side to him. He was willing to rescue Miha from a group of guys who were trying to strong arm her into going with them. (Although his good deed went punished, as he saved her by telling them she was a guy in drag.) Seung-Suh lives by himself, and his apartment is always trashed, even though he has a maid that comes in often to clean. He is addicted to Korean Pocki.
A 27-year-old man with a serious and stoic appearance. Unexpectedly, due to his appearance, his apartment is very dirty and messy. Ikewaki helps clean his apartment from time to time.
An upperclassmen who took an interest in Sugimoto due to his appearance to his ex-boyfriend