Android 18 is the twin sister of Android #17, and was created by Dr.Gero but because of malfunctioning problems had to be shut down. Unlike her brother #18 is not as patient and acts more viciously in her battles. While in the Cell Saga she develops a crush on Krillin and ends up marrying him after Cell is defeated. After that #18 plays a minor role in the Buu Saga fighting in the World Tournament.
BabyTrunks
BabyTrunks is a little half saiyan half human boy who makes his appearence in the Buu Saga as a bossy, rude little boy who looks up to Gohan as his older brother. BabyTrunks is trained by his father Vegeta and Gohan who help him reach his goal of becoming a super saiyan. He and Goten form together to become Gotenks. BabyTrunks also makes appearences in DBZ movies and later on becomes more mature and doesn't like the idea of fighting as much.
Bulma
Bulma is a human girl who first makes her appearence in Dragonball when she meets a young Goku and decides to join him in his adventure after shooting him in the head. Bulma and Goku become very good friends, and in Dragonball Z,Bulma helps the Z-Warriors by occasionally making devices and using her superior intelect to help them in their time of need. Bulma makes a device in GT to help Vegeta transform into SSJ 4.Bulma is also the maker of the Dragon Radar.
Choazu
Choazu is a small pale warrior who trains with his best friend Tien. He is the weakest Z-Warrior and doesn't participate in any of the fights in the Cell Saga and Buu Saga. Choazu spends most of his time hanging out with Roshi and the rest at Kame's house and plays a minor role in Dragonball Z.
Goten
This is Gokou's other son,and he's the spitting image of Gokou, but a miniaure version. He and Trunks Become great friends. and they even have a Fusion. This is when Goten and Trunks yell "Fuusion!" and become one. A very strong fusion called Gotenks. Goten and Trunks usually get in mischief and turns supersaiyan at a very young age, they even pretended to be a fighter in the adult tournament!
Krillin
Krillen was Goku's closest friend has fought with him forever. He and Gokou both Trained under Master Roshi. And at first both their power levels were about the same. But as the training proceded, Goku grew stronger than Krillin, but that's ok! Krillin and Gohan and Bulma go to Namek, and Krillin gets killed by Freeza. But again it was the killing that played a big part. It made Gokou turn Super Sayan so he could defeat Freeza. well anyway Krillin is a nice, funny, and good guy. He's also really short and bald with 6 dots on his head,but he eventually grows hair,marries Android 18,and has a daughter named Marron.
Gogeta
Gogeta is a powerful fusion who makes his appearence in DBZ movie #12, when Goku and Vegeta used the special fusion dance to create Gogeta. Gogeta battles Janemba and is a very fierce apponent. Gogeta then makes his appearence one again in GT when SSJ4 Vegeta and SSJ4 Goku fuse to become SSJ4 Gogeta. Gogeta still takes on his role as the fearce warrior who acts more like Vegeta than Goku.
Supreme Kai
After Buu slaughtered most of the Kaioshins, the East Kaioshin still remained. He is extremely powerful, and is by far the most powerful being in Heaven. He is very surprised that Goku and Vegita are stronger than him.
Tien
Tien is a human warrior that goes through most of Dragonball and Dragonball Z training with his friend Chaozu to become more powerful. He has a little grudge against Vegeta for getting him killed in the beginning of Dragonball Z and is often jealous of his power. Tien tries to compete with Goku and the other saiyans until the end of the Buu Saga when he realizes that he is too weak to fight anymore and slips through the background after that.He also teaches the Z Fighters the valuable Solar Flare,Mult-Form,and Kikoho techniques.
Future Trunks
He is the son of Vegita and Bulma. He is a pretty powerful saiyan. and he introduces himself by killng Freeza. By now you're probably pretty confused, so let me lay it out for you. Gokou, didn't completely kill Freeza, he let him out to die in space, pieces of him everywhere. (sorry for being so graphic). But Freeza's father, King Cold, found him and had his scientists put him back together. So then they went to earth (of course). And then Trunks came. He was from the future. Bulma is an extremely talented Scientist/ inventor, so she built a time machine to send future trunks in. So he came and turned Super Saiyan, and Killed Freeza and King Cold.Trunks originally came here to warn Goku of the Androids and gave him some heart medicine, because in the future, Goku dies of a rare heart disease.Eventually, he goes back to the future and kills off
Android 17,18&Cell.
Yamcha
Yamcha is a character who makes his appearence in Dragonball as a common thief until Goku and his crew come along and Yamcha desides to join in their adventure to collect the 7 magical dragonballs. After that Yamcha is pictured as one of the weaker fighters in Dragonball Z and is often a coward when it comes down to fighting someone more powerful than him. Yamcha falls in love with Bulma but goes on with his life after Bulma has a child with Vegeta. He then spends all of the Buu Saga walking around in a yellow tuxedo and doing practically nothing.
