Saiyans
The Saiyans first appeared on Planet Plant, homeworld of the Tsufurujins. They started a war to take over Planet Plant and after years of fighting they wiped out all of the Tsufurujins and renamed the newly won planet Planet Vegeta, in honour of their ruler. Prince Frieza son of king cold led an assault against Planet Vegeta and killed almost all the Saiyans as well as destroying their planet. Only seven Saiyans survived the racial oliberation; they were Goku, Vegeta, Brolly, Paragas, Raditz, Taurus and Nappa
Important Saiyans: Gohan, Goten, Trunks,Goku, Vegeta, Brolly, Pan and Bra
Humans
A weak civilization that lives on Planet Earth, the place where most of the initional fighting takes place during the DBZ and DB series
Important Humans: Tenshinhan, Krillin, Yamcha, Chi Chi, Bulma, Videl, Mr. Satan, Kamesennin, and Chiaotzu
Nameks
This civilization lived on a Planet called Namek and took a major roll in the Frieza Saga. Planet Namek eventuly blew up due to frieza's attack on the planet by trying to destroy Goku so the Nameks moved to a new planet they named New Planet Namek. Although this race was not very powerful they still have unique powers to say the least, their elders were the ones who created the Dragon Balls
There are 2 main types of Nameks. The first is combat-type and it includes characters such as Piccolo and Nail. The other is healer-type and that includes characters such as Dende
Important Nameks: Piccolo, Piccolo Daimao ,Nail, Kami,Dende,and Guru
Arlians
A race we see that lived on the Planet Arlia, until Vegeta and Nappa complety wiped out the civilization
there were no important Arlians
Tsufurujins
An advanced civilization with advanced weaponary. Their homeworld, Planet Plant, was captured by the Saiyans and their entire civilization was also destroyed by the Saiyans during King Vegeta Ou's rules reign. Babi was the only Tsufurujin who survived the destruction
Important Tsufurujins: Babi
Changeling
A powerful race in which King Cold is their leader. His son, Prince Frieza, played a major role during the Frieza Saga as the main villian they are an evil organization that takes over planets and uses its resources and inhabitants to their own advantage.The Changelings have a special feature in that they can transform into a different level, accompanied by a power boost. Frieza had 4 different stages of transformation and his brother Kooler had 5 different stages of transformation that they could perform
Important Changelings: Frieza,Kooler and king cold
Saibaimen
These creatures grow out of the ground and come in a variety of different species. There are blue ones and even green ones
Androids
The androids were created by Dr. Gero. They were created to fight and destroy things, and later on to kill Goku because of his role in the defeat of the red ribbon army. This race has a thirst for killing and destrucsion Androids #19 and #20 which was really Dr.Gero had a special device where they could absorb energy from a Ki blast or person by placing their hands in contact with the target. Androids #16, #17 and #18 had unlimited energy that never increased or decreased. Cell grew stronger as he absorbed more living-beings. Since he has the blood of a Saiyan, he also benefits from a power boost everytime he is recovered from the verge of death.
Important Androids: Android #16, #17, #18, #20, Cell and Super #17
Makiojin
Examples of the Makiojin are Garlic Jr and the Spice Boys. They live on the Makio Star and every 5000 years the Makio Star will give them temporary power
Important Makiojins: garlic his son Garlic Jr and the spice boys
Kaios
The Kaios take care of the area within the galaxy that they live in. There are four Kaios: North, South, East and West, who each look after their designated area of the galaxy. The Kaio who oversees the whole galaxy is Dai Kaio Sama, who lives on Planet Dai Kaio.The Kaios have a trademark technique called Kaioken. This technique puts a red glow around them and their energy like speed and power is boosted to whatever level they intend to boost it to
Important Kaios: North Kaio Sama (King Kai) and Dai Kaio Sama
Kaioshins
The Kaioshins take care of the area within the Universe that they live in. There are four Kaioshins: North, South, East and West. Their supreme ruler, the God of Gods, is Dai Kaioshin. All the Kaioshins except for East Kaioshin were slaghtered millions of years ago by Majin Buu so East Kaioshin took on the role of overseeing the whole Universe.The Kaioshins each have their own set of Potara Rings which allow the two different people wearing them to become permanently fused
Important Kaioshins: Kaioshin (formerly East Kaioshin) and Rou Kaioshin