Kakarotto: AKA Gokuu The "star" of all three DBall series. He's a saiyajin who was sent to earth to concur it and instead risked his life time and again to save it. He is the unlikely hero type. He may not always know exactly what to do or what's going on, but the fate of Earth, the galaxy, and the universe is often left on his broad shoulders.
Kuririn: The "underdog." Being the only human puts him a great disadvantage during their battles. But even though he gets hurt, he helps where he can. He is one of the the strongest humans and that deserves respect.
Gohan: Kakarotto's "brat." He, like all of the Son family, is among the strongest in the show. This half saiyajin was even more powerful than Gokuu at a point. He is a great fighter, intelligent, thanks to Chichi, and has great potential. But perhaps being a halfling is why he doesn't possess the insatiable love of fighting like his father or Bejiita. He tends to be a bit more mellow but was sill stronger than both of them at one point. He often uses 'the power of anger and loss." Don't push him into a corner or hurt his friends or you'll regret it.
Pikkoro: He's the silent type. He and Bejiita are surprisingly similar at times. He can be grumpy, taciturn, has a dark past, and interesting fashion sense. But he too changes over time. He's much nicer after a point, especially to Gohan. He's a strong and talented fighter and has often aided in the Z-team in saving the cosmos.
Goten: Gokuu's second brat. He, like many of the halflings has a lot of potential and could be as strong a fighter as his brother or father. But he may not have the discipline or drive to train as hard as they. He's most often seen with Trunks.
Master Roshi:The perverted old man of the series. Though usually morally depraved, he has helped save the day. Before Gokuu, he was the strongest fighter in the world. He maybe old but do not underestimate him, his age has made him wise and crafty.
Yamucha: He too has aided Gokuu and the others in saving the day. But like many of the human fighters, he got little air time after the super saiyajin craze. He was once Buruuma's main squeeze, but, we'll say it didn't work out.
Tien: One of the Z fighters. He also has great fighting skills and pretty cool moves. He is always accompanied by Choutsu. His three eyes usually leaves his race or species as yet another unanswered question in DBZ.
Yajarobi: The bearer of the senzu beans. He gives them out when needed. He does little else. Though he is often seen hiding behind a rock watching the fight take place.
Bideru: Satan (Hercule's) daughter and Gohan's class mate and future wife. She is rather strong and has been training her whole life. She and Gohan, often disguised as Saiyaman ichi gou and ni gou, ditch class to run off and fight the "bad guys."
Pan: Gohan and Bideru's future daughter. She is also rather strong despite her size, youth and sex. She tends to be quite hot headed and fiery. She's a co-star of DBGT.