Bee is the little dog who Majin Buu finds and befriends along with Mr. Satan. Buu bonds with the puppy and is playing catch with him when two gangsters shoot the dog. Buu heals the puppy, but he's enraged by the event and even more so after they shoot at Mr. Satan, which causes him to flip and create Evil Buu. During the end of the Buu Saga, Mr. Satan and Bee travel around the area until they encounter Gohan, Piccolo, Goten, Trunks and Super Buu. Fans get to see a lighter, more caring side of Mr. Satan during this time, as he makes sure that Bee is safe while the Super Saiyan Vegetto clashes with Buu. Bee lives with Mr. Satan and Buu after the Buu Saga and is once being looked after by Bulma and Trunks in Wrath of the Dragon (presumably being lent to Trunks by Buu for a few days). He appears again, although very naturally aged, in the last 3 episodes of Dragon Ball Z and Dragon Ball GT. In the English manga, the dog is known as "Bay."
Age 22. Rookie editor at Weekly JIDAI. Kunio is a man who feels that one's life shouldn't be wasted completely on working. He gets his job done but, unlike Hiroko, he doesn't feel that one should devote their whole life to just work. While there are several people who clash with Hiroko throughout the series, Kunio is probably one of those that repeats the most, if only for their complete difference in work ethic.
Age 45. Chief editor at Weekly JIDAI. As the senior editor within the department, Tatsuhiko doesn't seem to do a whole lot. He's a rather laid back man and is often accused of being sexist towards the female characters (though whether that is true, especially compared to other male characters in the series, is debatable.) While he is very susceptible to flattery, Tatsuhiko also has his serious moments. There is a reason why he is the boss and when the stakes are raised, he is willing to step up and take responsibility.
Age 28. Hiroko's boyfriend. Like Hiroko, Shinji works long hours. He also frequently travels on business, making it difficult for the two of them to spend time together. Shinji isn't as successful in his business endeavours as Hiroko, however, and this leads to more problems in their relationship.
A high school student who has always been treated as an errand boy by his juniors on the baseball club. He has been an unpopular guy and people even often mistakenly call his name.