Android
Homeworld: Earth

Beings that consist mostly or entirely of artificial parts, yet still maintain a human look. There are three classes of androids in the Dragonball world: Androids with a human base that rely on an internal power source, androids without a human base with an internal power source, and androids with a human base that rely on power absorbing nodes in their hands. All androids in the series are produced by the Red Ribbon Army.

Bas-jin

Homeworld: Unknown

A short, stout race of four-eyed telepaths, only one Bas-jin is introduced to us in the series (Gerudo). It is unknown if any more exist.

Kaio

Homeworld: Heaven

Lesser gods of the universe, the Kaios are immortal creatures that live in heaven. In the series, we only see the Kaio from the North Galaxy, and it is unknown if the rest were killed when Buu destroyed most of the Kaioshins. The Kaios are notorious for their pride and stubborness, but they rarely let it get the better of them.

Kaioshin

Homeworld: Heaven

Rulers of the four galaxies, the Kaioshins are immortal beings that watch (and protect) their domain. All but the East Kaioshin is wiped out by Buu's tirade. They are not physically strong, but as gods, they have a great influence over the galaxies.

Saiya-jin

Homeworld: Old Vegita (Planet Plant)

A brutal, primitive race, the Saiya-jins were a race of bandits on Planet Plant. Their long-time rivals, the Tsufuru-jin, managed to keep the physically strong race in check with their technology. However, the Saiya-jins took over the planet when Plant had its first full moon in a long time. The planet was renamed Vegita, and the Saiya-jins adopted Tsufuru-jin machines for themselves. Ignorance brought the downfall of their race when they refused to heed Bardock's warning about Furiza. Their homeworld was smashed to bits, and only a handful of Saiya-jins survived. All members of their race (even half-bloods) possess the ability to go Oozaru and Super Saiya-jin, though few reach the level to attain SSJ.

Tsufuru-jin

Homeworld: Old Vegita (Planet Plant)

A frail, yet highly intelligent race native to the Planet Plant, they protect their domain from the chaotic race of wilderness-dwelling Saiya-jin. Their civilization is heavily advanced, and possesses technology that allows them to move spaceships beyond the speed of light. However, a full moon wipes out their entire race (but not their technology).

Yardrat-jin

Homeworld: Yardrat

A race that can manipulate time and space, they play a brief (but important) role when they teach Goku how to use Shunkan Idou. Goku ends up on their world when he finds one of the Ginyu pods space-worthy, and hops in just before Namek explodes.