Android
From Dragon Ball
Androids are robotic/cyborg humans, most of them created by the evil scientist Dr Gero. Most of the androids are said to have unlimited energy and have eternal life. They also have no aura unlike Saiyans, Humans, and others. There are at least 8 android models shown to have been fully functional throughout the series (11 if you count Cell, #20 who is really Dr. Gero, and Super 17 who his half android half machine mutant). The androids served as main villains during the Android Saga and the Cell Saga, each serving a purpose of their own. Originally, all of the androids were plans used to kill Goku, however, most of the androids turned to the good side or were killed. However, in the Future Trunks time line, the androids succeeded in their plans for world destruction, managing to kill all of the main Z Fighters (except for Goku, who died of a heart virus) until later being finally killed by Trunks almost 20 years later.
